Explore topic-wise MCQs in Arithmetic Ability.

This section includes 119 Mcqs, each offering curated multiple-choice questions to sharpen your Arithmetic Ability knowledge and support exam preparation. Choose a topic below to get started.

51.

The HCF of 42, 63 and 105 is

A. 7
B. 630
C. 63
D. 21
Answer» E.
Discussion
52.

The HCF of 96, 156 and 60 is

A. 3
B. 48
C. 12
D. 4
Answer» D. 4
Discussion
53.

The H.C.F of two numbers is 11 and their L.C.M is 7700. If one of the numbers is 275 , then the other is

A. 279
B. 283
C. 308
D. 318
Answer» D. 318
Discussion
54.

The HCF of 36,54 and 108 is

A. 6
B. 9
C. 18
D. 12
Answer» D. 12
Discussion
55.

The HCF of two numbers is 11 and their LCM is 330. If one of the number is 55. Find the other number.

A. 33
B. 66
C. 44
D. 77
Answer» C. 44
Discussion
56.

The HCF of 24, 60 and 90 is:

A. 3
B. 6
C. 12
D. 4
Answer» C. 12
Discussion
57.

The HCF of 20, 28 and 48 is

A. 8
B. 2
C. 1
D. 4
Answer» E.
Discussion
58.

The HCF of 162, 54 and 135 is

A. 9
B. 1
C. 27
D. 3
Answer» D. 3
Discussion
59.

The H.C.F and L.C.M of two numbers are  84 and 21 respectively.  If the ratio of the two numbers is 1 : 4 , then the larger of the two numbers is

A. 12
B. 48
C. 84
D. 108
Answer» D. 108
Discussion
60.

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.

A. 107
B. 103
C. 105
D. 102
Answer» D. 102
Discussion
61.

The H.C.F and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125 , then that number is

A. 77
B. 88
C. 99
D. 110
Answer» B. 88
Discussion
62.

The greatest possible length which can be used to measure exactly the length 7m, 3m 85cm, 12 m 95 cm is

A. 15 cm
B. 25 cm
C. 35 cm
D. 42 cm
Answer» D. 42 cm
Discussion
63.

The G.C.D of 1.08, 0.36 and 0.9 is

A. 0.9
B. 0.36
C. 0.18
D. 1.08
Answer» D. 1.08
Discussion
64.

The difference of two numbers is 14. Their LCM and HCF are 441 and 7. Find the two numbers ?

A. 63 and 49
B. 64 and 48
C. 62 and 46
D. 64 and 49
Answer» B. 64 and 48
Discussion
65.

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

A. 4
B. 10
C. 15
D. 16
Answer» E.
Discussion
66.

L.C.M of two prime numbers x and y (x>y) is 161. The value of 3y-x is :

A. -2
B. -1
C. 1
D. 2
Answer» B. -1
Discussion
67.

Product of two co-prime numbers is 117. Their L.C.M  should be

A. 1
B. 117
C. Equal to their H.C.F
D. cannot be calculated
Answer» C. Equal to their H.C.F
Discussion
68.

LCM of 80, 85, 90

A. 11440
B. 11998
C. 12240
D. 12880
Answer» D. 12880
Discussion
69.

LCM of two co-prime numbers a and b is (a is greater than b):

A. a
B. a+b
C. ab
D. b
Answer» D. b
Discussion
70.

In a palace, three different types of coins are there namely gold, silver and bronze. The number of gold, silver and bronze coins is 18000, 9600 and 3600 respectively. Find the minimum number of rooms required if in each room should give the same number of coins of the same type ?

A. 26
B. 24
C. 18
D. 12
Answer» B. 24
Discussion
71.

LCD of 12 and 18

A. 36
B. 42
C. 12
D. 6
Answer» B. 42
Discussion
72.

LCM of 252, 308 and 198 is

A. 1443
B. 2124
C. 2545
D. 2772
Answer» E.
Discussion
73.

If X is a prime number, LCM of X and its successive number would be

A. X
B. X (X+1)
C. (X+1)
D. X/(X+1)
Answer» C. (X+1)
Discussion
74.

If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to

A. 55/601
B. 601/55
C. 11/120
D. 120/11
Answer» D. 120/11
Discussion
75.

If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to ?

A. 13/125
B. 14/57
C. 11/120
D. 16/41
Answer» D. 16/41
Discussion
76.

If the product of two numbers is 4941 and their LCM is 81, then their HCF is :

A. 60
B. 59
C. 35
D. 61
Answer» E.
Discussion
77.

If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:

A. 55/601
B. 601/55
C. 11/120
D. 120/11
Answer» D. 120/11
Discussion
78.

If the product of two numbers is 3026 and their LCM is 89, then their HCF is :

A. 33
B. 34
C. 35
D. 29
Answer» C. 35
Discussion
79.

If the product of two numbers is 2646 and their LCM is 42 then their HCF is

A. 64
B. 26
C. 46
D. 63
Answer» E.
Discussion
80.

If the HCF of 210 and 55 is expressible in the form of 210 x 5 + 55P, then value of P = ?

A. -23
B. 27
C. 16
D. -19
Answer» E.
Discussion
81.

If the product of two numbers is 2400 and their LCM is 96 then their HCF is

A. 35
B. 240
C. 24
D. 25
Answer» E.
Discussion
82.

If the product of two numbers is 2522 and their LCM is 97 then their HCF is

A. 28
B. 29
C. 27
D. 26
Answer» E.
Discussion
83.

If N is the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. What is the sum of the digits of N ?

A. 6
B. 8
C. 4
D. 9
Answer» D. 9
Discussion
84.

If HCF of two numbers is 8,which of the following can never be their LCM?

A. 32
B. 48
C. 60
D. 152
Answer» D. 152
Discussion
85.

HCF of two numbers is 19 and their LCM is 665. If one of the number is 95, find the other.

A. 19
B. 133
C. 190
D. 77
Answer» C. 190
Discussion
86.

H.C.F of 4 x 27 x 3125,  8 x 9 x 25 x 7  and   16 x 81 x 5 x 11 x 49 is

A. 180
B. 360
C. 540
D. 1260
Answer» B. 360
Discussion
87.

H.C.F of 4 x 27 x 3125, 8 x 9 x 25 x 7 and 16 x 81 x 5 x 11 x 49 is :

A. 360
B. 180
C. 90
D. 120
Answer» C. 90
Discussion
88.

HCF of 1, 2, 3?

A. 3
B. 2
C. 1
D. 0
Answer» D. 0
Discussion
89.

Find the lowest common multiple of 24, 36 and 40?

A. 360
B. 420
C. 240
D. 120
Answer» B. 420
Discussion
90.

HCF and LCM of two numbers are 11 and 825 respectively. If one number is 275 find the other number.

A. 53
B. 45
C. 33
D. 43
Answer» D. 43
Discussion
91.

Find the least common multiple of 15 and 12?

A. 3
B. 12
C. 30
D. 60
Answer» E.
Discussion
92.

Find the LCM of the following fractions:_x005F_x000D_  _x005F_x000D_ 2/3,  8/9,  16/27,  32/81_x005F_x000D_

A. 32/81
B. 81/32
C. 32/3
D. 15281
Answer» D. 15281
Discussion
93.

Find the LCM of 35, 311, 3-11 and 314_x005F_x000D_

A. 35
B. 311
C. 44503
D. 314
Answer» E.
Discussion
94.

Find the LCM of 34, 85 and 102._x005F_x000D_

A. 340
B. 680
C. 510
D. 1020
Answer» D. 1020
Discussion
95.

Find the L.C.M of 4/5, 2/3 and 5/7.

A. 25
B. 20
C. 40
D. 30
Answer» C. 40
Discussion
96.

Find the LCM of 37, 111 and 148.

A. 296
B. 444
C. 222
D. 424
Answer» C. 222
Discussion
97.

Find the LCM of 12, 16, 20 and 24.

A. 180
B. 220
C. 240
D. 260
Answer» D. 260
Discussion
98.

Find the LCM of 3.2, 2.72, 1.28 and 1.44

A. 24.48
B. 2448
C. 2.448
D. 244.8
Answer» B. 2448
Discussion
99.

Find the LCM of 0.63, 10.5, 2.1, 4.20

A. 63
B. 0.63
C. 6.3
D. 6300
Answer» B. 0.63
Discussion
100.

Find the LCM of 15, 25 and 29.

A. 2335
B. 3337
C. 2175
D. 2375
Answer» D. 2375
Discussion