Explore topic-wise MCQs in Arithmetic Ability.

This section includes 402 Mcqs, each offering curated multiple-choice questions to sharpen your Arithmetic Ability knowledge and support exam preparation. Choose a topic below to get started.

1.

Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:

A. 4
B. 5
C. 6
D. 8
Answer» B. 5
2.

Reduce_x000D_ 128352_x000D_ to its lowest terms._x000D_ _x000D_ _x000D_ 238368

A. 3_x000D_ _x000D_ _x000D_ 4
B. 5_x000D_ _x000D_ _x000D_ 13
C. 7_x000D_ _x000D_ _x000D_ 13
D. 9_x000D_ _x000D_ _x000D_ 13
Answer» D. 9_x000D_ _x000D_ _x000D_ 13
3.

The H.C.F. of 9 , 12 , 18 and 21 is: 10 25 35 40

A. 3 5
B. 252 5
C. 3 1400
D. 63 700
Answer» D. 63 700
4.

The least number which when divided by 4, 6, 8, 12 and 16 leaves remainder of 2 in each case is = ?

A. 6
B. 8
C. 0
D. 6
Answer» D. 6
5.

The HCF and LCM of two numbers are 8 and 48 respectively. If one of the number is 24, then the other number is=?

A. 8
B. 6
C. 4
D. 6
Answer» E.
6.

The H.C.F. of $$\frac{{9}}{{10}},$$ $$\frac{{12}}{{25}},$$ $$\frac{{18}}{{35}}$$ and $$\frac{{21}}{{40}}$$ is:

A. $\frac{{3}}{{5}}$$
B. $\frac{{252}}{{5}}$$
C. $\frac{{3}}{{1400}}$$
D. $\frac{{63}}{{700}}$$
Answer» D. $\frac{{63}}{{700}}$$
7.

Which of the following fraction is the largest ?

A. $\frac{{7}}{{8}}$$
B. $\frac{{13}}{{16}}$$
C. $\frac{{31}}{{40}}$$
D. $\frac{{63}}{{80}}$$
Answer» B. $\frac{{13}}{{16}}$$
8.

Reduce $$\frac{{128352}}{{238368}}$$to its lowest terms.

A. $\frac{{3}}{{4}}$$
B. $\frac{{5}}{{13}}$$
C. $\frac{{7}}{{13}}$$
D. $\frac{{9}}{{13}}$$
Answer» D. $\frac{{9}}{{13}}$$
9.

The HCF and LCM of two numbers are 12 and 336 respectively. If one of the numbers is 84, the other is=?

A. 6
B. 8
C. 2
D. 6
Answer» C. 2
10.

A number which when divided by 10 leaves a remainder of 9, when divided by 9 leaves a remainder of 8, and when divided by 8 leaves a remainder of 7, is=?

A. 539
B. 39
C. 59
D. 359
Answer» D. 359
11.

The HCF and LCM of two 2-digit number are 16 and 480 respectively. The numbers are ?

A. 0, 48
B. 0, 72
C. 4, 80
D. 0, 96
Answer» E.
12.

The number nearest to 10000, which is exactly divisible by each of 3, 4, 5, 6, 7 and 8 is=?

A. 240
B. 0080
C. 996
D. 0000
Answer» C. 996
13.

Three numbers which are co-prime to one another are such that product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is=?

A. 5
B. 1
C. 5
D. 9
Answer» D. 9
14.

From a point on a circular track 5km long A,B and C started running in the same direction at the same time with speed of $$2\frac{1}{2}$$ km per hour, 3 km per hour and 2 km per hour respectively. Then on the starting point all three will meet again after ?

A. 0 hours
B. hours
C. 0 hours
D. 5 hours
Answer» D. 5 hours
15.

HCF of 3240, 3600, and a third number is 36 and their LCM is 24 × 35 × 52 × 72 . The third number is=?

A. 2 × 35 × 72
B. 2 × 53 × 72
C. 5 × 52 × 72
D. 3 × 35 × 72
Answer» B. 2 × 53 × 72
16.

The G.C.D. (greatest common divisor) of 1.08, 0.36, 0.9 is=?

A. 0.03
B. 0.9
C. 0.18
D. 0.108
Answer» D. 0.108
17.

The smallest square number divisible by 10, 16 and 24 is ?

A. 00
B. 600
C. 500
D. 600
Answer» E.
18.

The ratio of two numbers is 13 : 15 and their LCM is 39780 . The numbers are=?

A. 84, 1020
B. 84, 1040
C. 70, 1340
D. 652, 3060
Answer» E.
19.

The least number which when divided by 4, 6, 8 and 9 leave zero remainder in each case and when divided by 13 leaves a remainder of 7 is= ?

A. 44
B. 2
C. 6
D. 5
Answer» C. 6
20.

HCF and LCM of two numbers are 7 and 140 respectively. If the numbers are between 20 and 45, the sum of the numbers is=?

A. 0
B. 7
C. 3
D. 6
Answer» D. 6
21.

The LCM of $$\frac{2}{3}{\text{,}}\frac{3}{5}{\text{,}}\frac{4}{7},\frac{9}{{13}}$$is = ?

A. 6
B. $\frac{1}{{36}}$$
C. $\frac{1}{{1365}}$$
D. $\frac{{12}}{{455}}$$
Answer» B. $\frac{1}{{36}}$$
22.

The HCF of $$\frac{9}{{10}}{\text{,}}\frac{{12}}{{25}}{\text{,}}\frac{{18}}{{35}}$$and $$\frac{{21}}{{40}}$$ is = ?

A. $\frac{3}{5}$$
B. $\frac{{252}}{5}$$
C. $\frac{3}{{1400}}$$
D. $\frac{{63}}{{700}}$$
Answer» D. $\frac{{63}}{{700}}$$
23.

The H.C.F. of $$\frac{a}{b}{\text{,}}\frac{c}{d}{\text{,}}\frac{e}{f}$$is equal to = ?

A. $\frac{{{\text{LCM of }}a,c,e{\text{ }}}}{{{\text{HCF of }}b,d.f}}$$
B. $\frac{{{\text{HCF of }}a,c,e{\text{ }}}}{{{\text{LCM of }}b,d,f{\text{ }}}}$$
C. $\frac{{{\text{HCF of }}a,c,e}}{{{\text{HCF of }}b,d.f}}$$
D. $\frac{{ace}}{{bdf}}$$
Answer» C. $\frac{{{\text{HCF of }}a,c,e}}{{{\text{HCF of }}b,d.f}}$$
24.

The least perfect square which is divisible by each of 21, 36 and 66 is= ?

A. 14344
B. 14434
C. 13444
D. 31444
Answer» D. 31444
25.

L.C.M. of two numbers is 2079 and their H.C.F. is 27. If one of the number is 189, the other number is=?

A. 97
B. 84
C. 89
D. 16
Answer» B. 84
26.

Two numbers are in the ratio 3 : 4, if their H.C.F. is 4, then their L.C.M.=?

A. 8
B. 2
C. 6
D. 4
Answer» B. 2
27.

The L.C.M. of 22, 54, 108, 135 and 198 is=?

A. 30
B. 980
C. 940
D. 1880
Answer» D. 1880
28.

Which of the following is a pair of co-primes ?

A. 16, 12)
B. 18, 25)
C. 21, 35)
D. 23, 92)
Answer» C. 21, 35)
29.

A milkman has 75 litres milk in one cane and 45 litres in another. The maximum capacity of container which can measure milk of either container exact number ?

A. litre
B. litres
C. 5 litres
D. 5 litres
Answer» D. 5 litres
30.

The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:

A. 000
B. 400
C. 600
D. 800
Answer» D. 800
31.

A general of an Army wants to create a formation of square from 36562 army men. After arrangement, he found some army men remainder unused.

A. 6
B. 5
C. 1
D. 7
Answer» D. 7
32.

Two pipes of length 1.5 m and 1.2 m are to be cut into equal pieces without leaving any extra length of pipes. The greatest length of the pipe pieces of same size which can be cut from these two lengths will be = ?

A. .13 m
B. 6 m
C. .3 m
D. .41 m
Answer» D. .41 m
33.

A number x is divided by 7. When this number is divided by 8, 12 and 16. It leaves a remainder 3 in each case. The least value of x is=?

A. 48
B. 49
C. 50
D. 47
Answer» E.
34.

The product of two whole numbers is 1500 and their HCF is 10. Find the LCM=?

A. 5000
B. 50
C. 500
D. 5
Answer» C. 500
35.

LCM of two prime numbers x and y (x > y) is 161. Then the value of 3y - x is = ?

A. 2
B. 1
Answer» B. 1
36.

The traffic lights at three different signal points change after every 45 seconds, 75 seconds and 90 seconds respectively. If all change simultaneously at 7:20:15 hours, then they will change again simultaneously at=?

A. :28:00 hours
B. :27:45 hours
C. :27:30 hours
D. :27:50 hours
Answer» C. :27:30 hours
37.

The greatest 4 digit number which is exactly divisible by each one of the numbers 12, 18, 21 and 28=?

A. 288
B. 882
C. 828
D. 928
Answer» D. 928
38.

The ratio of two numbers is 3 : 4 and their LCM is 120. The sum of numbers is=?

A. 0
B. 40
C. 5
D. 05
Answer» B. 40
39.

If three number are 2a, 5a and 7a, what will be their LCM ?

A. 0a
B. 5a
C. 5a
D. 3a
Answer» B. 5a
40.

The LCM of four consecutive numbers is 60. The sum of the first two numbers is equal to the fourth number. What is the sum of four numbers

A. 7
B. 4
C. 1
D. 4
Answer» C. 1
41.

Find the HCF of 132, 204 and 228=?

A. 2
B. 8
C.
Answer» B. 8
42.

Three wheels can complete 40, 24 and 16 revolutions per minutes respectively. There is a red spot on each wheel that touches the ground at time zero. After how much time, all these spots will simultaneously touch the ground again ?

A. ${\text{7}}\frac{1}{2}$$ sec.
B. 8 sec.
C. $7\frac{1}{2}$$ min.
D. 8 min.
Answer» B. 8 sec.
43.

Three girls start jogging from the same point around a circular track and each one completes one round in 24 seconds, 36 seconds and 48 seconds respectively. After how much time will they meet at one point ?

A. minutes 20 seconds
B. minutes 24 seconds
C. minutes 36 seconds
D. minutes 12 seconds
Answer» C. minutes 36 seconds
44.

The number between 4000 and 5000 that is divisible by each of 12, 18, 21 and 32 is=?

A. 203
B. 023
C. 032
D. 302
Answer» D. 302
45.

The difference between the greatest and least prime numbers which are less then 100 is=?

A. 5
B. 6
C. 7
D. 4
Answer» B. 6
46.

A number between 1000 and 2000 which when divided by 30, 36 and 80 gives a remainder 11 in each case is=?

A. 1523
B. 451
C. 641
D. 712
Answer» C. 641
47.

Four bells begin to toll together and toll respectively at intervals of 6, 7, 8 and 9 seconds. In 1.54 hours, how many times do they toll together and in what interval (seconds)?

A. 4, 504
B. 4, 480
C. 2, 504
D. 6, 580
Answer» D. 6, 580
48.

An electronic device makes a beep after every 60 sec. Another device makes a beep after every 62 sec. They beeped together at 10 am. The next time, when they would beep together at the earliest is=?

A. 0.30 am
B. 0.31 am
C. 0.59 am
D. 1 am
Answer» C. 0.59 am
49.

The LCM of two numbers is 12 times their HCF. The sum of the HCF and LCM is 403. If one of the number is 93, then the other is=?

A. 16
B. 24
C. 12
D. 20
Answer» C. 12
50.

The HCF and LCM of two numbers are 21 and 84 respectively. If the ratio of the two numbers is 1 : 4 then larger of the two numbers is=?

A. 8
B. 2
C. 4
D. 08
Answer» D. 08