Quizsummary
0 of 158 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
Information
Solved Questions for Mathematics Pedagogy
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 158 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Not categorized 0%
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 Answered
 Review

Question 1 of 158
1. Question
1 pointsThe nature of mathematics is
Correct
Incorrect

Question 2 of 158
2. Question
1 pointsWho said that, “Mathematics is the science which draws necessary conclusions”?
Correct
Incorrect

Question 3 of 158
3. Question
1 pointsMathematics is the science of
Correct
Incorrect

Question 4 of 158
4. Question
1 points“To appreciate the works of mathematician”. Corresponds to which value?
Correct
Incorrect

Question 5 of 158
5. Question
1 pointsAccording to Hogben, “Mathematics is the mirror of civilization” this statements corresponds to which value of mathematics?
Correct
Incorrect

Question 6 of 158
6. Question
1 pointsWhich work is not related with a teacher?
Correct
Incorrect

Question 7 of 158
7. Question
1 pointsWhich point is not included in the professional skills of a teacher?
Correct
Incorrect

Question 8 of 158
8. Question
1 points“Preponderate of nation” is
Correct
Incorrect

Question 9 of 158
9. Question
1 pointsWhich is not the characteristics of a successful teacher?
Correct
Incorrect

Question 10 of 158
10. Question
1 pointsThe most possibility of guessing is
Correct
Incorrect

Question 11 of 158
11. Question
1 pointsThe most important use of essay type test is
Correct
Incorrect

Question 12 of 158
12. Question
1 pointsThe presence or absence of a characteristics on trait is indicated by
Correct
Incorrect

Question 13 of 158
13. Question
1 points“To develop new theories by discovering broad generalisations” is the purpose of
Correct
Incorrect

Question 14 of 158
14. Question
1 pointsAction Research is
Correct
Incorrect

Question 15 of 158
15. Question
1 pointsWho applied the concept of action research firsttime
Correct
Incorrect

Question 16 of 158
16. Question
1 pointsThe research concerned with school problems carried on by school personal to improve school plan is
Correct
Incorrect

Question 17 of 158
17. Question
1 pointsWho is the pioneer in the field of Taxonomy of Education objectives?
Correct
Incorrect

Question 18 of 158
18. Question
1 pointsRCEM approach is used to write the objective of
Correct
Incorrect

Question 19 of 158
19. Question
1 pointsA good objective should be
Correct
Incorrect

Question 20 of 158
20. Question
1 pointsWhich of the following is not a action verb?
Correct
Incorrect

Question 21 of 158
21. Question
1 pointsAny visible activity displayed by the learner is
Correct
Incorrect

Question 22 of 158
22. Question
1 pointsThe five stepped system of lesson planning was started by
Correct
Incorrect

Question 23 of 158
23. Question
1 pointsPreparation of Daily lesson planning includes
Correct
Incorrect

Question 24 of 158
24. Question
1 pointsAccording to RCEM approach the correct order is
Correct
Incorrect

Question 25 of 158
25. Question
1 pointsEssential features of a unit plan are
Correct
Incorrect

Question 26 of 158
26. Question
1 pointsA unit plan should
Correct
Incorrect

Question 27 of 158
27. Question
1 pointsThe more comprehensive plan is
Correct
Incorrect

Question 28 of 158
28. Question
1 pointsAppropriate method for the establishment of the formulae in mathematics is
Correct
Incorrect

Question 29 of 158
29. Question
1 pointsThe method based upon real thinking, experiments and inspection
Correct
Incorrect

Question 30 of 158
30. Question
1 points‘Unknown to known’ is advanced in which method
Correct
Incorrect

Question 31 of 158
31. Question
1 pointsProject method was advocated by
Correct
Incorrect

Question 32 of 158
32. Question
1 pointsMeaning of the word ‘Heurisco’ is
Correct
Incorrect

Question 33 of 158
33. Question
1 pointsThe method based on scientific method is
Correct
Incorrect

Question 34 of 158
34. Question
1 pointsThe form of drill work may be
Correct
Incorrect

Question 35 of 158
35. Question
1 pointsThe complementary written work is
Correct
Incorrect

Question 36 of 158
36. Question
1 pointsWhich of the following is more helpful in the development of alertness
Correct
Incorrect

Question 37 of 158
37. Question
1 pointsThe most use of teaching aids in
Correct
Incorrect

Question 38 of 158
38. Question
1 pointsThe most useful teaching aid in mathematics is
Correct
Incorrect

Question 39 of 158
39. Question
1 pointsThe most effective teaching aid
Correct
Incorrect

Question 40 of 158
40. Question
1 pointsIn incidental correlation the main role of
Correct
Incorrect

Question 41 of 158
41. Question
1 pointsA teacher should have versatile knowledge of all the subject is necessary for
Correct
Incorrect

Question 42 of 158
42. Question
1 pointsCorrelation between two variables may be
Correct
Incorrect

Question 43 of 158
43. Question
1 pointsCorrelation in mathematics indicates
Correct
Incorrect

Question 44 of 158
44. Question
1 pointsWhich of the following subjects, mathematics in highly correlated
Correct
Incorrect

Question 45 of 158
45. Question
1 pointsIn the most useful textbook of mathematics
Correct
Incorrect

Question 46 of 158
46. Question
1 pointsIn the text book of mathematics, the content should be developed
Correct
Incorrect

Question 47 of 158
47. Question
1 pointsCharacteristics of a god textbooks is that it
Correct
Incorrect

Question 48 of 158
48. Question
1 pointsThe organization of content is the textbook of mathematics should be
Correct
Incorrect

Question 49 of 158
49. Question
1 pointsThe most reliable scale of measurement is
Correct
Incorrect

Question 50 of 158
50. Question
1 pointsTo provide the marks on the basis of presence forms
Correct
Incorrect

Question 51 of 158
51. Question
1 pointsEvaluation is closely related with
Correct
Incorrect

Question 52 of 158
52. Question
1 pointsEvaluation should be done in teaching of mathematics
Correct
Incorrect

Question 53 of 158
53. Question
1 pointsEvaluation is done by
Correct
Incorrect

Question 54 of 158
54. Question
1 pointsPrognosis has the administrative function such as
Correct
Incorrect

Question 55 of 158
55. Question
1 pointsCCE helps to develop the habit of
Correct
Incorrect

Question 56 of 158
56. Question
1 pointsCCE helps in eliminating
Correct
Incorrect

Question 57 of 158
57. Question
1 pointsCCE provides feed back to
Correct
Incorrect

Question 58 of 158
58. Question
1 pointsCCE emphasize the development of
Correct
Incorrect

Question 59 of 158
59. Question
1 pointsExciting examination system provides opportunities for
Correct
Incorrect

Question 60 of 158
60. Question
1 pointsPresent examination system is
Correct
Incorrect

Question 61 of 158
61. Question
1 pointsExamination reform attempts to improve
Correct
Incorrect

Question 62 of 158
62. Question
1 pointsExisting pattern of examination mainly measures the objectives of which aspect
Correct
Incorrect

Question 63 of 158
63. Question
1 pointsThe objective type test which are mostly used and are useful
Correct
Incorrect

Question 64 of 158
64. Question
1 pointsThe most important characteristic of objective type test is
Correct
Incorrect

Question 65 of 158
65. Question
1 pointsAchievement test are
Correct
Incorrect

Question 66 of 158
66. Question
1 pointsWhen the aim of testing is to compare the classes then use is made of
Correct
Incorrect

Question 67 of 158
67. Question
1 pointsAchievement test are
Correct
Incorrect

Question 68 of 158
68. Question
1 pointsEducational diagnosis is concerned with
Correct
Incorrect

Question 69 of 158
69. Question
1 pointsIn the scope of educational diagnosis use is made of
Correct
Incorrect

Question 70 of 158
70. Question
1 pointsCriterionReferenced test relate the performance of child to
Correct
Incorrect

Question 71 of 158
71. Question
1 pointsThe emphasis is given an improvement of pupils achievement in
Correct
Incorrect

Question 72 of 158
72. Question
1 pointsIn which type of test no criterion is necessary?
Correct
Incorrect

Question 73 of 158
73. Question
1 pointsWhich type of interpretations may be used for guidances purposes?
Correct
Incorrect

Question 74 of 158
74. Question
1 pointsAkanksha is a gifted student of mathematics in class V. Which of the following will help her most in increasing her abilities?
Correct
Incorrect

Question 75 of 158
75. Question
1 pointsIf mental Age of Arjun is 15 and chronological Age is 12. What will be the I.Q. of Arjun?
Correct
Incorrect

Question 76 of 158
76. Question
1 pointsWhich one of the following type of the curriculum can be used in case of gifted children?
Correct
Incorrect

Question 77 of 158
77. Question
1 pointsThe exceptional children are
Correct
Incorrect

Question 78 of 158
78. Question
1 pointsThe category of mentally exceptional children includes
Correct
Incorrect

Question 79 of 158
79. Question
1 pointsWhat ever the details of treatment for exceptional children, our main task should be to help a particular child in becoming
Correct
Incorrect

Question 80 of 158
80. Question
1 pointsThe most suitable definition of mathematics may be given as
Correct
Incorrect

Question 81 of 158
81. Question
1 pointsFundamentals of deductive reasoning are
Correct
Incorrect

Question 82 of 158
82. Question
1 pointsIn the study of mathematics we use
Correct
Incorrect

Question 83 of 158
83. Question
1 pointsCreativity and originality of ideas is developed by
Correct
Incorrect

Question 84 of 158
84. Question
1 pointsWhich is a problemcentrad and democratic technique
Correct
Incorrect

Question 85 of 158
85. Question
1 pointsThe aim step of curriculum construction is
Correct
Incorrect

Question 86 of 158
86. Question
1 pointsWhich of the following number divides the product of 8 consecutive integers?
Correct
8! =
so 8! is divisible by 8 consecutive number
Incorrect
8! =
so 8! is divisible by 8 consecutive number

Question 87 of 158
87. Question
1 pointsNumber divisible by 11 is:
Correct
Sum of digits at even places = 4 + 2 + 4 = 10
Sum of digits at odd places = 21
Differences = 21 – 10 = 11 so number is divisible by 11
Incorrect
Sum of digits at even places = 4 + 2 + 4 = 10
Sum of digits at odd places = 21
Differences = 21 – 10 = 11 so number is divisible by 11

Question 88 of 158
88. Question
1 pointsThe square of a prime numbers between 10 and 50 which is same after interchanging its digits is:
Correct
Incorrect

Question 89 of 158
89. Question
1 pointsWhich of the following number of 4 digits divides a number which is obtained by repeating a number of two digits is:
Correct
Incorrect

Question 90 of 158
90. Question
1 pointsIf 93P 25Q is divisible by 88 then value of P and Q is:
Correct
If 932P25Q is divisible by 88 then it is divisible by 8 and 11 both. For divisibility by 8 we know Q 88 must be divisible by 8 so Q = 6. For divisibility by 11
[(9 + P + 5) – (3+ 3 + 2)] should be either 0 or multiple of 11
(9 + P + 5) – (3 + 2 + Q) = 14 + P – 11
P = 8
Incorrect
If 932P25Q is divisible by 88 then it is divisible by 8 and 11 both. For divisibility by 8 we know Q 88 must be divisible by 8 so Q = 6. For divisibility by 11
[(9 + P + 5) – (3+ 3 + 2)] should be either 0 or multiple of 11
(9 + P + 5) – (3 + 2 + Q) = 14 + P – 11
P = 8

Question 91 of 158
91. Question
1 pointsIf a > 0 and b < 0 then which of the following is always true:
Correct
If a > 0 and b < 0 then a – b > 0.
Incorrect
If a > 0 and b < 0 then a – b > 0.

Question 92 of 158
92. Question
1 pointsThe total number of factors of is:
Correct
Incorrect

Question 93 of 158
93. Question
1 pointsIn a fraction sum of numerator and denominator is 8. If 2 is added to both the numerator and denominator then value of new fraction is
more than original fraction. The fraction is:
Correct
x = y = 8 y = 8 – x
(x – 3) (x + 20)
x = 3, y = 5
So fraction is
Incorrect
x = y = 8 y = 8 – x
(x – 3) (x + 20)
x = 3, y = 5
So fraction is

Question 94 of 158
94. Question
1 pointsIf 39 x3 is divisible by 7 then x is:
Correct
If x = 7 then number 3773 is divisible by 7
Incorrect
If x = 7 then number 3773 is divisible by 7

Question 95 of 158
95. Question
1 pointsCommon factor in is:
Correct
, will be divisible by (x + a) if n is odd, so common factor is (13 + 11) i.e. 24
Incorrect
, will be divisible by (x + a) if n is odd, so common factor is (13 + 11) i.e. 24

Question 96 of 158
96. Question
1 pointsis equal to
Correct
=
Incorrect
=

Question 97 of 158
97. Question
1 pointsIf addition and product of two number is 12 and 35 then addition of their reciprocals is:
Correct
x + y = 12 and xy = 35
Incorrect
x + y = 12 and xy = 35

Question 98 of 158
98. Question
1 pointsDigit at unit place in is:
Correct
Unit place digit of is 4.
So unit place of is 6 + 4 = 10 digit at so it is 0
Incorrect
Unit place digit of is 4.
So unit place of is 6 + 4 = 10 digit at so it is 0

Question 99 of 158
99. Question
1 pointsSimplified value of is:
Correct
=
Incorrect
=

Question 100 of 158
100. Question
1 pointsA two digit number is 54 more than sum of its digit. The difference between its digit is:
Correct
Let number be 10x + y as equation is not solvable for y if n = 6 so (c) is right option
Incorrect
Let number be 10x + y as equation is not solvable for y if n = 6 so (c) is right option

Question 101 of 158
101. Question
1 pointswhat is the reminder when is divided by 23?
Correct
When 2851, 2862 and 2873 are divided by 23 then remainders 22, 10 and 21
So remainder R =
Remainder = 18
Incorrect
When 2851, 2862 and 2873 are divided by 23 then remainders 22, 10 and 21
So remainder R =
Remainder = 18

Question 102 of 158
102. Question
1 points17 First 20 natural numbers are written as N = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 when this number is divided by 16 then remainder is:
Correct
When number formed by last 4 digits 1920 is divided by 16 when remainder is 0
Incorrect
When number formed by last 4 digits 1920 is divided by 16 when remainder is 0

Question 103 of 158
103. Question
1 points899
Correct
899 has four factors as 1, 29, 31 and 899
Incorrect
899 has four factors as 1, 29, 31 and 899

Question 104 of 158
104. Question
1 pointsIf in a number the difference between the totals of digits appearing at even places and odd places is 0 then number is divisible by
Correct
Incorrect

Question 105 of 158
105. Question
1 pointsThe digit at unit place in the number
is:
Correct
digit at unit place is [1 + 1 – 6 + 5 – 6 + 9] = 4
Incorrect
digit at unit place is [1 + 1 – 6 + 5 – 6 + 9] = 4

Question 106 of 158
106. Question
1 pointsThe value of is
Correct
=
Incorrect
=

Question 107 of 158
107. Question
1 pointsIf then sum of squares of its reciprocals is
Correct
=
Incorrect
=

Question 108 of 158
108. Question
1 pointsIf 2 = then value of x is
Correct
2 =
Incorrect
2 =

Question 109 of 158
109. Question
1 pointsIf difference of squares of two consecutive even numbers is 84 then sum of the number is:
Correct
Let numbers be 2x and (2x + 2) then
Incorrect
Let numbers be 2x and (2x + 2) then

Question 110 of 158
110. Question
1 pointsThe digit at unit place in is:
Correct
Incorrect

Question 111 of 158
111. Question
1 pointsSum of the reciprocals of 3 integers is again an integer. Such three integers are:
Correct
Incorrect

Question 112 of 158
112. Question
1 pointsAfter rationalisation of then value of n is:
Correct
Incorrect

Question 113 of 158
113. Question
1 points14 27 256 3125 46656?
Correct
Incorrect

Question 114 of 158
114. Question
1 points15 12 17 10 ? 8 27 6
Correct
Incorrect

Question 115 of 158
115. Question
1 points12 14 17 13 8 14 21 13 4 ?
Correct
Incorrect

Question 116 of 158
116. Question
1 pointsThe number of zeros in the end of
is:
Correct
No. of zeroes will be equal to power of 5
Powers of 5 in
= (5 + 10 + 15 + 20 + 25 + …… + 50 + ……. + + 100) + (25 + 50 + 75 + 100)
Incorrect
No. of zeroes will be equal to power of 5
Powers of 5 in
= (5 + 10 + 15 + 20 + 25 + …… + 50 + ……. + + 100) + (25 + 50 + 75 + 100)

Question 117 of 158
117. Question
1 pointsThe remainder when is divided by 18 is:
Correct
When is divided by 18 remainder is 0
Incorrect
When is divided by 18 remainder is 0

Question 118 of 158
118. Question
1 pointsThe number which is wrong in series
3, 10, 36, 172, 885, 5346, 37471 is:
Correct
3, 10, 36, 172, 885, 5346, 37471
and so on
Incorrect
3, 10, 36, 172, 885, 5346, 37471
and so on

Question 119 of 158
119. Question
1 pointsThe next term of the series 0, 3, 8, 15, 24, 35, …… is
Correct
……………………….
……………………….
Incorrect
……………………….
……………………….

Question 120 of 158
120. Question
1 pointsThe next term of the series is
Correct
Taking numerator 1, 3, 5, 7, 9
Taking denominator 2, 4, 8, 16, 32
Incorrect
Taking numerator 1, 3, 5, 7, 9
Taking denominator 2, 4, 8, 16, 32

Question 121 of 158
121. Question
1 pointsThe value of is
Correct
= 1000000  2000 + 1 + 995 = 998996
Incorrect
= 1000000  2000 + 1 + 995 = 998996

Question 122 of 158
122. Question
1 pointsThe value of is:
Correct
Incorrect

Question 123 of 158
123. Question
1 pointsThe simplified value of is:
Correct
=
Incorrect
=

Question 124 of 158
124. Question
1 pointsIf then value of x is:
Correct
Incorrect

Question 125 of 158
125. Question
1 pointsThe simplified value of is:
Correct
=
=
=
Incorrect
=
=
=

Question 126 of 158
126. Question
1 pointsIf is:
Correct
Incorrect

Question 127 of 158
127. Question
1 pointsis equal to:
Correct
=
=
Incorrect
=
=

Question 128 of 158
128. Question
1 pointsis equal to:
Correct
=
=
=
Incorrect
=
=
=

Question 129 of 158
129. Question
1 pointsThe value of is:
Correct
=
=
=
=
Incorrect
=
=
=
=

Question 130 of 158
130. Question
1 pointsThe simplified value of
Correct
Incorrect

Question 131 of 158
131. Question
1 pointsIf then value of is:
Correct
Incorrect

Question 132 of 158
132. Question
1 pointsIf A = is:
Correct
Incorrect

Question 133 of 158
133. Question
1 pointsThe simplified value of
is
Correct
=
=
=
=
Incorrect
=
=
=
=

Question 134 of 158
134. Question
1 pointsWhich of the following number is greatest ?
Correct
is the largest number.
Incorrect
is the largest number.

Question 135 of 158
135. Question
1 pointsThe value of is:
Correct
Incorrect

Question 136 of 158
136. Question
1 pointsis equal to
Correct
=
=
Incorrect
=
=

Question 137 of 158
137. Question
1 pointsThe simplified value of
is
Correct
=
=
=
=
Incorrect
=
=
=
=

Question 138 of 158
138. Question
1 pointsIf then value of
is:
Correct
6.4 + .64 + .064 + .0064 = 7.11
Incorrect
6.4 + .64 + .064 + .0064 = 7.11

Question 139 of 158
139. Question
1 pointsThe value of is:
Correct
=
=
=
Incorrect
=
=
=

Question 140 of 158
140. Question
1 pointsIn value of x is:
Correct
Incorrect

Question 141 of 158
141. Question
1 pointsWhich of the following number is greatest?
Correct
After squaring of all these we get
= 12 – 6 (Approx) = 6
= 8 – 4 (Approx) = 4
= 16 – 8 (Approx) = 8
= 20 – 10 (Approx) = 10
So is the largest number
Incorrect
After squaring of all these we get
= 12 – 6 (Approx) = 6
= 8 – 4 (Approx) = 4
= 16 – 8 (Approx) = 8
= 20 – 10 (Approx) = 10
So is the largest number

Question 142 of 158
142. Question
1 pointsWhich of the following is smallest faction?
Correct
Incorrect

Question 143 of 158
143. Question
1 pointsIf is value of
Correct
Incorrect

Question 144 of 158
144. Question
1 pointsThe increasing order of is
Correct
Incorrect

Question 145 of 158
145. Question
1 pointsThe rational form of is
Correct
Incorrect

Question 146 of 158
146. Question
1 pointsWhich of the following is in decreasing order
Correct
Correct descending order is
Incorrect
Correct descending order is

Question 147 of 158
147. Question
1 pointsis equal to:
Correct
Using Bodmas
=
= 9 – 1
= 8
Incorrect
Using Bodmas
=
= 9 – 1
= 8

Question 148 of 158
148. Question
1 pointsHow much
Correct
=
= 66 – 39 = 27
Incorrect
=
= 66 – 39 = 27

Question 149 of 158
149. Question
1 pointsLCM and HCF of two number is 4125 and 25 difference between the numbers is
Correct
Incorrect

Question 150 of 158
150. Question
1 pointsThe ratio of LCM and HCF of 5, 15 and 20 is
Correct
LCM (5, 15, 20) = 60, HCF (5, 15, 20) = 5
LCM:HCF = 60:5 = 12:1.
Incorrect
LCM (5, 15, 20) = 60, HCF (5, 15, 20) = 5
LCM:HCF = 60:5 = 12:1.

Question 151 of 158
151. Question
1 pointsThe length and breadth of floor of a room are 2.50 m and 1.50 m. The length of side of largest square shaped tiles which can be placed at the floor is
Correct
HCF (250, 150) = 50 cm
Incorrect
HCF (250, 150) = 50 cm

Question 152 of 158
152. Question
1 pointsSix bells ring at the interval of 2, 4, 7, 8, 10 and 12 seconds. After starting at same time how many times they will ring at the same time in 30 minutes?
Correct
LCM (2, 4, 7, 8, 10, 12) = 840 sec
30 min =
They will ring 2 times at the same time in 30 min. as
Incorrect
LCM (2, 4, 7, 8, 10, 12) = 840 sec
30 min =
They will ring 2 times at the same time in 30 min. as

Question 153 of 158
153. Question
1 pointsLCM of
Correct
Incorrect

Question 154 of 158
154. Question
1 pointsA write is to be sold in multiple of 1m. A person needs some pieces of 85 cm. The minimum length of wire when loss is minimum is
Correct
LCM (1000 cm, 85 cm) = 17000 cm = 17 cm.
Incorrect
LCM (1000 cm, 85 cm) = 17000 cm = 17 cm.

Question 155 of 158
155. Question
1 pointsLCM of two numbers is 28 times of their HCF sum of LCM and HCF is 1740. If one of the number is 240 then another number is
Correct
LCM = 28 HCF …… (1)
And LCM + HCF = 1740 m
Or LCM + 28 HCF = 1740 [From (1)]
Or HCF =
HCF = 60,
LCM =
Incorrect
LCM = 28 HCF …… (1)
And LCM + HCF = 1740 m
Or LCM + 28 HCF = 1740 [From (1)]
Or HCF =
HCF = 60,
LCM =

Question 156 of 158
156. Question
1 pointsIf LCM of three numbers is 9570 then their HCF is
Correct
We know that LCM of two numbers is always greater than their HCF so HCF is 11
Incorrect
We know that LCM of two numbers is always greater than their HCF so HCF is 11

Question 157 of 158
157. Question
1 pointsLCM of two numbers is 36 and their sum is 30. The numbers are
Correct
Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18 and 36 and sum of 12 and 18 is 30 and their LCM is 36.
Incorrect
Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18 and 36 and sum of 12 and 18 is 30 and their LCM is 36.

Question 158 of 158
158. Question
1 pointsThe smallest number which gives remainder 1 when divided by 7, 9, and 12 is
Correct
LCM (7, 9, 12) = 252
Number = LCM (7, 9, 12) + 1 = 253
Incorrect
LCM (7, 9, 12) = 252
Number = LCM (7, 9, 12) + 1 = 253
0 Comments