Explore topic-wise MCQs in Mental Ability.

This section includes 60 Mcqs, each offering curated multiple-choice questions to sharpen your Mental Ability knowledge and support exam preparation. Choose a topic below to get started.

1.

What should come in place of the question mark(?) in the following questions ?_x005F_x000D_ 316 + 412 - 223 - 11112 = ?

A. 1.5833333333333
B. 1.4166666666667
C. 3.5833333333333
D. 3.0833333333333
Answer» E.
Discussion
2.

What approximate value will come in place of question mark (?) in the following question ?_x005F_x000D_  (49.001)2  = ?

A. 2500
B. 2400
C. 2600
D. 2300
Answer» C. 2600
Discussion
3.

What is the value of P in the following Equation ?_x005F_x000D_  192.5 × 19p = 197

A. 3.9
B. 4.1
C. 3.7
D. 4.5
Answer» E.
Discussion
4.

What is x squared plus x squared?

A. 4x
B. 2x^2
C. x^4
D. 2x
Answer» C. x^4
Discussion
5.

The value of -4-(-10) is how much greater then the value of -10-(-4) ?

A. 10
B. 6
C. 12
D. 0
Answer» D. 0
Discussion
6.

The solution of 3(2u + v) = 7 uv and 3(u + 3v) = 11 uv is ______x005F_x000D_

A. u = 1, v = 0
B. u = 1, v = 3/2
C. u = 0, v = 3/4
D. u = 0, v = 1
Answer» C. u = 0, v = 3/4
Discussion
7.

The following equation is incorrect. Which two signs should be interchanged to correct the equation? 15 x 12 + 40 ÷ 40 - 6 = 21

A.
B.
C. - and +
D. ÷ and x
Answer» B.
Discussion
8.

Select the number which can be placed at the place of ? in the following question_x005F_x000D_

A. 35
B. 42
C. 45
D. 95
Answer» B. 42
Discussion
9.

Select the missing number in the given question?_x005F_x000D_

A. 9
B. 4
C. 8
D. 2
Answer» E.
Discussion
10.

In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation._x005F_x000D_ 15 x 26 = 6512_x005F_x000D_ 29 x 36 = 6923,_x005F_x000D_ 46 x 54 = ?

A. 5464
B. 4645
C. 4564
D. 4465
Answer» C. 4564
Discussion
11.

Select the correct set of symbols which will fit in the given equation?_x005F_x000D_ 5  0  3  5 = 20

A. x, x, x
B. -, +, x
C. x, +, x
D. +, -, x
Answer» C. x, +, x
Discussion
12.

In a group of buffaloes and ducks the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group ?

A. 6
B. 18
C. 12
D. 24
Answer» D. 24
Discussion
13.

In a cricket match, five batsmen P, Q, R, S and T scored an average of 36 runs. S Scored 5 more than T; T scored 8 fewer than P; Q scored as many as S and T combined; and Q and R scored 107 between them. How many runs did T score ?

A. 20
B. 29
C. 28
D. 24
Answer» B. 29
Discussion
14.

In the following problem, '=' stands for '÷' , '+' stands for '­' , 'x' stands for '=', '­' stands for '+' and '÷' stands for 'x'. Find the correct equation.

A. 8 ÷ 4 + 1 ­- 5 = 6 x 4
B. 4 x 6 ÷ 4 + 4 = 7
C. 5 ÷ 3 ­- 25 + 20 = 20 x 39
D. 96 ÷ 2 x 6 ÷105 + 1
Answer» D. 96 ÷ 2 x 6 ÷105 + 1
Discussion
15.

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question._x005F_x000D_ 5 + 10 x 21 ÷ 5 - 15 = ?

A. 49
B. 2
C. 20
D. 34
Answer» C. 20
Discussion
16.

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?642 x 6 ÷ 25 + 4 = ?

A. 11
B. 64
C. 18
D. 7
Answer» E.
Discussion
17.

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?72 x 9 - 14 + 2 = ?

A. 26
B. 80
C. 30
D. 36
Answer» E.
Discussion
18.

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?24 x 6 - 8 + 2 = ?

A. 25
B. 50
C. 40
D. 20
Answer» E.
Discussion
19.

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?25 + 10 ÷ 240 x 16 = ?

A. 85
B. 235
C. 12
D. 20
Answer» C. 12
Discussion
20.

In a certain code language, '-' represents 'x', '÷' represents '+', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.19 ÷ 2 - 35 + 10 x 6 = ?

A. 20
B. 14
C. 32
D. 16
Answer» B. 14
Discussion
21.

In a certain code language, '-' represents'+', '+' represents 'x', 'x' represents '÷' and '÷'represents '-'. Find out the answer to the following question._x005F_x000D_ 2 - 12 + 10 x 5 ÷ 12 = ?

A. 32
B. 8
C. 4
D. 14
Answer» E.
Discussion
22.

In a certain code language, '÷' represents '+', '-' represents 'x', '+' represents '÷' and 'x' represents '-'. Find out the answer to the followingquestion. 8 ÷ 14 - 20 + 5 x 2 = ?

A. 46
B. 62
C. 32
D. 14
Answer» C. 32
Discussion
23.

If × stands for 'addition', ÷ stands for 'subtraction', + stands for 'multiplication' and-stands for 'division', then 20 × 8 ÷ 8 - 4 + 2 = ?

A. 80
B. 25
C. 24
D. 5
Answer» D. 5
Discussion
24.

If × means ÷,  - means ×,  ÷ means + and  + means- than (3 - 15 ÷ 19) × 8 + 6 = ?

A. 8
B. 4
C. 2
D. -1
Answer» D. -1
Discussion
25.

If the signs + and / and the numbers 2 and 4 are interchanged, which one of the following four equations would be correct?

A. 4/2+3 = 6
B. 2+4/3 = 3
C. 4+2/6 = 1.5
D. 2+4/6 = 8
Answer» E.
Discussion
26.

If "–" means "divided by", "+" means "multiplied by", "÷" means "added to", "x" means "subtracted from", then 11 ÷ 6 – 2 + 5 x 3 = ?

A. 17
B. 21
C. 23
D. 26
Answer» D. 26
Discussion
27.

If '+' means subtraction, '÷' means addition, '<' means multiplication and '>' means division, then find the value of the given statement,_x005F_x000D_ The value of 9 ÷ 7 < 8 > (4>2) + 5 will be

A. 32
B. 18
C. 16
D. 11
Answer» B. 18
Discussion
28.

If Q means 'add to', J means 'multiply by', T means 'substract from' and K means 'divide by' then 30 K 2 Q 3 J 6 T 5 = ?

A. 18
B. 28
C. 31
D. 103
Answer» C. 31
Discussion
29.

If "–" means "added to", "+" means "divided by", "÷" means "multiplied by", "x" means "subtracted from", then 13 + 12 x 9 ÷ 3 – 6 = ?

A. –117/11
B. 117/11
C. –237/12
D. –239/12
Answer» E.
Discussion
30.

If "–" stands for "÷", "+"stands for "x", "÷" for "–" and "x" for "+", which of the following equations is correct?

A. 40 – 10 + 5 ÷ 4 x 5 = 21
B. 40 + 10 – 4 x 5 ÷ 3 = 80
C. 40 ÷ 10 – 4 x 5 + 3 = 32
D. 8 – 4 x 40 ÷ 2 + 15 = 30
Answer» B. 40 + 10 – 4 x 5 ÷ 3 = 80
Discussion
31.

If "÷" denotes "multiplied by", "+" denotes "subtracted from", "x" denotes "added to" and "–" denotes "divided by",then_x005F_x000D_ 12 – 6 + 28 x 3 ÷ 9 = ?

A. -24
B. -53
C. 1
D. 0
Answer» D. 0
Discussion
32.

If "K" denotes "multiplied by", "M" denotes "subtracted from", "J" denotes "added to" and "L" denotes "divided by", then44 M 24 K 56 L 14 J 60 = ?

A. 16
B. 72
C. 8
D. 40
Answer» D. 40
Discussion
33.

If "#" means "subtraction", "&" means "division", "@" means "addition" and "%" means "multiplication" then_x005F_x000D_  _x005F_x000D_ 516 & 6 # 11 @ 50 % 4 = ?_x005F_x000D_

A. 210
B. 274
C. 250
D. 275
Answer» E.
Discussion
34.

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then 81 x 9 + 10 – 6 ÷ 5 = ?

A. 46
B. -46
C. 47
D. -45
Answer» C. 47
Discussion
35.

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then 38 x 2 – 6 + 19 ÷ 35 = ?

A. 130
B. 140
C. 135
D. 145
Answer» B. 140
Discussion
36.

If "÷" denotes "multiplied by", "+" denotes "subtracted from", "–" denotes "added to" and "x" denotes "divided by", then which of the following equation is true?

A. 16 + 19 x 21 – 5 = 201
B. 5 x 6 + 4 ÷ 3 = 37/6
C. 6 x 3 + 12 ÷ 3 = 21
D. 18 x 6 ÷ 8 – 12 = 36
Answer» E.
Discussion
37.

If "+" denotes "divided by", "x" denotes "added to", "÷" denotes "subtracted from" and "–" denotes "multiplied by", then54 + 162 – 18 x 12 ÷ 6 = ?

A. 4
B. 16
C. 12
D. 10
Answer» D. 10
Discussion
38.

If "A" denotes "subtracted from", "B" denotes "added to", "C" denotes "divided by", "D" denotes "multiplied by", then which of the following statement is correct?

A. 3 A 12 B 16 D 17 C 1 = 163
B. 5 C 7 A 9 D 8 B 2 = 294
C. 13 C 13 A 13 B 13 D 13 = 157
D. 18 C 16 D 49 A 27 B 9 = 200
Answer» D. 18 C 16 D 49 A 27 B 9 = 200
Discussion
39.

If, 4x3=14; 5x4=18; 6x5=22; Then find the value of 7x6=?

A. 20
B. 26
C. 30
D. 42
Answer» C. 30
Discussion
40.

If 25 + 5 ÷ 2 = 40 , and 35 + 5 ÷ 2 = 60 , then 45 + 5 ÷ 2 = ?

A. 90
B. 70
C. 60
D. 80
Answer» E.
Discussion
41.

If 324⊕289 = 35, 441⊕484 = 43, then 625⊕400 = ?

A. 431
B. 413
C. 341
D. 143
Answer» E.
Discussion
42.

If 3 # 4 % 8 = 6 and 9 % 4 # 3 = 12, then 12 % 6 # 24 = ?

A. 4
B. 3
C. 5
D. 6
Answer» C. 5
Discussion
43.

If 19 (36) 13 and 37 (81) 28, then what is the value of 'A' in 43 (A) 38?

A. 49
B. 36
C. 25
D. 16
Answer» D. 16
Discussion
44.

If 18 (9) 3 and 36 (30) 5, then what is the value of A in 19 (A) 18?

A. 33
B. 57
C. 75
D. 96
Answer» C. 75
Discussion
45.

If 17 + 17 = 2895 18 + 18 = 3245 19 + 19 = 3615 then 23 + 23 = ?

A. 5765
B. 2565
C. 4005
D. 5295
Answer» E.
Discussion
46.

If 13*45 = 29 ,24*58 = 41 ,74*32 = 53 ,what should 97*47 be?

A. 73
B. 72
C. 63
D. 64
Answer» C. 63
Discussion
47.

Given intercharges : _x005F_x000D_ Signs + and x and numbers 4 and 5.

A. 5 x 4 + 20 = 40
B. 5 x 4 + 20 = 85
C. 5 x 4 + 20 = 104
D. 5 x 4 + 20 = 95
Answer» D. 5 x 4 + 20 = 95
Discussion
48.

Given interchanges : _x005F_x000D_ Signs + and - , numbers 4 and 8.

A. 4 + 8 - 12 = 12
B. 4 - 8 + 12 = 0
C. 8 + 4 - 12 = 24
D. 8 - 4 + 12 = 8
Answer» C. 8 + 4 - 12 = 24
Discussion
49.

Find the Value of ?_x005F_x000D_ 5.112.2+5.553.3+6.31.4+7.22.001 = ? x 3.34

A. 81
B. 77
C. 73
D. 89
Answer» E.
Discussion
50.

Find the quadratic equations whose roots are the reciprocals of the roots of 2x2+5x+3?_x005F_x000D_ A)  3x2+5x+2=0   _x005F_x000D_ B) 5x2+3x+2=0 _x005F_x000D_ C) 3x2-5x-2=0   _x005F_x000D_ D)  None

A. A
B. B
C. C
D. D
Answer» B. B
Discussion