Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Which one of the following three-digit numbers divides 9238 and 7091 with the same remainder in each case?

A. 113
B. 191
C. 209
D. 317
Answer» B. 191
2.

If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, what is the time taken by 15 men and 20 boys in doing the same type of work?

A. 4 days
B. 7 days
C. 5 days
D. 6 days
Answer» D. 6 days
3.

What is the HCF of (x4 - x2- 6) and (x4 - 4x2 + 3)?

A. x^2 - 3
B. x^2 + 3
C. x + 2
D. x + 3
Answer» B. x^2 + 3
4.

The HCF of (x4 - y2) and (x6 - y6) is

A. x ^2- y^ 2
B. x^4- y^4
C. x - y
D. x ^3- y ^3
Answer» B. x^4- y^4
5.

If m men can do a job in p days, then (m + r) men can do the job in how many days?

A. (p + r) days
B. m + r /p days
C. mp /m + r days
D. P/m + r days
Answer» D. P/m + r days
6.

When a positive integer n is divided by 5, the remainder is 2. What is the remainder when the number 3n is divided by 5?

A. 1
B. 4
C. 2
D. 3
Answer» B. 4
7.

What is the smallest positive integer which when divided by 4, 5, 8 and 9 leaves remainder 3, 4, 7 and 8, respectively?

A. 119
B. 719
C. 319
D. 359
Answer» E.
8.

A motorboat takes 2 h to travel a distance of 9 km down the current and it takes 6 h to travel the same distance against the current. What is the speed of the boat in still water 1 km/h?

A. 2
B. 1
C. 3
D. 1.5
Answer» D. 1.5
9.

If x2+ x + 1 = 0, then what is the value of,(x+ 1/x)2 + (x2 + 1/x2)2+....+ (x27 + 1/x27)2?

A. 36
B. 54
C. 27
D. 45
Answer» C. 27
10.

The HCF of two numbers is 98 and their LCM is 2352. The sum of the numbers may be

A. 1372
B. 1484
C. 1398
D. 1426
Answer» B. 1484
11.

A man bought a number of oranges at 3 for a rupee and an equal number at 2 for a rupee. At what price per dozen should he sell them to make a profit of 20%?

A. rs 4
B. rs 7
C. rs 5
D. rs 6
Answer» E.
12.

What is the HCF of a2 b4 + 2a2 b2 and (ab)7 - 4a2 b9 ?

A. ab
B. a^3 b^2
C. a^2 b^3
D. a^2b^2
Answer» E.
13.

What is the HCF of the polynomials x3 + 8, x2 + 5x+6 and x3 + 2x2 + 4x + 8?

A. x+ 2
B. None of these
C. x+ 3
D. (x + 2 )^2
Answer» B. None of these
14.

21 mango trees, 42 apple trees and 56 orange trees have to be planted in rows such that each row contains the same number of trees of one variety only. What is the minimum number of rows in which the above trees may be planted?

A. 3
B. 20
C. 15
D. 17
Answer» E.
15.

A man can walk uphill at the rate of 2.5 km/h and downhill at the rate of 3.25 km/h. If the total time required to walk a certain distance up the hill and return to the starting position is 4 h 36 min, what is the distance he walked up the hill?

A. 4.5 km
B. 6.5 km
C. 3.5 km
D. 5.5 km
Answer» C. 3.5 km
16.

If the radius of the base and the height of a right circular cone are increased by 20%, then what is the approximate percentage increase in volume?

A. 60%
B. 75%
C. 68%
D. 73%
Answer» E.
17.

Profit and LossBy giving 25% discount a trader earns 25% profit. If he sells the item at 10% discount, what is his profit?

A. 10%
B. 50%
C. 40%
D. 45%
Answer» C. 40%
18.

An amount at compound interest doubles itself in 4 yr. In how many years will the amount become 8 times itself?

A. 8 yr
B. 24 yr
C. 12 yr
D. 16 yr
Answer» D. 16 yr
19.

If x is positive even integer and y is negative odd integer, then xy is

A. odd integer
B. None of these
C. even integer
D. rational number
Answer» E.
20.

What is the least number of square tiles required to pave the floor of a room 9 m 99 cm long and 4 m 7 cm broad?

A. 247
B. 307
C. 277
D. 297
Answer» E.
21.

42 men take 25 days to dig a pond. If the pond would have to be dug in 14 days, then what is the number of men to be employed?

A. 67
B. 84
C. 75
D. 81
Answer» D. 81
22.

The simple interest on a certain sum of money ey for 3 yr at 8% per annum is half the compound interest on 4000 for 2 yr 10% per annum. What is the sum placed on simple interest?

A. Rs 1550
B. Rs 2000
C. Rs 1650
D. Rs 1750
Answer» E.
23.

Consider the following statementsI. Every composite number is a natural number.II. Every whole number is a natural numberWhich of the statements given above is/are correct?

A. Only I
B. Neither I nor II
C. Only II
D. Both I and II
Answer» B. Neither I nor II
24.

X can do a work in 16 days. In how many days will the work be completed by Y, if the efficiency of Y is 60% more than that of X?

A. 12 days
B. 30 days
C. 10 days
D. 25 days
Answer» E.
25.

A train takes 9 s to cross a pole. If the speed of the train is 48 km/h, the length of the train is

A. 120 m
B. 80 m
C. 150 m
D. 120 m
Answer» E.
26.

The product GCD is 24. What is their LCM?

A. 280
B. 296
C. 286
D. 288
Answer» B. 296
27.

The compound interest on a sum for 2 yr is rs 832 and the simple interest on the same sum at the same rate for the same period is r 800. What is the rate of interest?

A. 6%
B. 12%
C. 8%
D. 10%
Answer» D. 10%
28.

What is the value of [log10 (5 log10100)]2?

A. 4
B. 3
C. 2
D. 1
Answer» E.
29.

Four taps can individually fill a cistern of water in 1h, 2h, 3h and 6h, respectively. If all the four taps are opened simultaneously, the cistern can be filled in how many minutes?

A. 20
B. 40
C. 30
D. 35
Answer» D. 35
30.

Two trains of lengths 100 m and 150 m are travelling in opposite directions at speeds of 75 km/h and 50 km/h, respectively. What is the time taken by them to cross each other?

A. 7.2 s
B. 6.8 s
C. 7.4 s
D. 7 s
Answer» B. 6.8 s
31.

What is the LCM of (x2-y2-z2 - 2yz),(x2-y2+z2 + 2x z) and (x2-y2-z2-2x y)?

A. (x + y + z) (x + y- z) (x - y + z)
B. (x + y - z) (x - y -z) (x - y + z)
C. (x + y + z) (x - y -z) (x - y + z)
D. (x + y + z) (x + y -z)(x- y- z)
Answer» D. (x + y + z) (x + y -z)(x- y- z)
32.

What is the HCF of 4x3 + 3x2 y - 9xy2 + 2y3 and x2+ Xy - 2y2 ?

A. x- 2 y
B. (x - 2 y) (x - y)
C. x - y
D. (x + 2 y) (x - y)
Answer» E.
33.

The product of a rational number and an irrational number is

A. a natural number
B. a rational number
C. an irrational number
D. a composite number
Answer» D. a composite number
34.

In a certain school, the ratio of boys to girls is 7 : 5. If there are 2400 students in the school, then how many girls are there?

A. 500
B. 1000
C. 700
D. 800
Answer» C. 700
35.

The income of 'A' is 20% higher than that of B, The income of B' is 25% less than of 'C'. What per cent less is A's income from C's income?

A. 7%
B. 12.5%
C. 8%
D. 10%
Answer» E.
36.

For a positive integer n, define d (n) = The number of positive divisors of n. What is the value of d[d{d(12)}]?

A. 1
B. None of these
C. 2
D. 4
Answer» C. 2
37.

There are two taps A and B to fill up a water tank The tank can be filled in 40 mm, if both taps are On. The same tank can be filled in 60 min, if tap A alone is on. How much time will tap B alone take, to fill up the same tank?

A. 64 min
B. 120 min
C. 80 min
D. 96 min
Answer» C. 80 min
38.

A cloth store is offering Buy 3, get 1 free. What is the net percentage discount being offered by the store?

A. 20%
B. 100/3%
C. 25%
D. 30%
Answer» D. 30%
39.

Which among the following is the largest four digit number that is divisible by 88?

A. 9988
B. 8888
C. 9966
D. 9944
Answer» E.
40.

The smallest positive prime (say p) such that 2p —1 is not a prime is

A. 5
B. 29
C. 11
D. 17
Answer» D. 17
41.

Consider the following assumption and two statementsAssumption A number 'ABCDE' is divisible by 11. Statement I E—D+C—B+A is divisible by 11 Statement II E—D+C—B+A=0Which one of the following is correct?

A. Only Statement I can be drawn from the assumption
B. Neither of the statements can be drawn from the assumption
C. Only Statement II can be drawn from the assumption
D. Both the statements can be drawn from the assumption
Answer» E.
42.

A bus starts with some passengers. At the first stop, one-fifth of the passengers gets down and 40 passengers get in. At the second stop, half of the passengers gets down and 30 get in. The number of passengers now is 70. The number of passengers with which the bus started was

A. 50
B. 70
C. 40
D. 60
Answer» B. 70
43.

A milk vendor bought 28 L of milk at the cost of t 8.50 per L. After adding some water, he sold the mixture at the same price. If he gains 12.5%, how much water did he add?

A. 5.5 L
B. 2.5 L
C. 4.5 L
D. 3.5 L
Answer» E.
44.

If 18 men earn Rs 1440 in 5 days, how many men can earn Rs 1920 in 8 days?

A. 10
B. 18
C. 12
D. 15
Answer» E.
45.

The population of a village increases by 20% one year and decrease by 20% by the next year if at the beginning of the third year, the population is 5184, what was the population in the first year?

A. 5400
B. 5800
C. 5500
D. 5600
Answer» B. 5800
46.

What is the greatest number which divides 392, 486 and 627 so as to leave the same remainder in each case?

A. 47
B. 34
C. 43
D. 37
Answer» B. 34
47.

Which one of the following numbers is not a square of any natural numbers?

A. 5041
B. 6241
C. 9852
D. 1936
Answer» D. 1936
48.

There are some coins and rings of either gold or silver in a box. 60% of the objects are coins, 40% of the rings are of gold and 30% of the coins are of silver. What is the percentage of gold articles?

A. 16%
B. 70%
C. 27%
D. 58%
Answer» E.
49.

The sum of two numbers is 232 and their HCF is 29. What is the number of such pairs of numbers satisfying the above condition?

A. One
B. None of these
C. Two
D. Four
Answer» D. Four
50.

Work and TimeThe ratio of the radii of the taps T1 and T2 is 2:1. Water is flowing through them with the same velocity. What is ratio of the time required to completely fill two identical drums kept under T1 and T2?

A. 2 : 1
B. 1 : 4
C. 1 : 2
D. 4
Answer» C. 1 : 2