Explore topic-wise MCQs in Mental Ability.

This section includes 733 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.

Which two signs should be interchanged to make the given equation correct ?_x005F_x000D_  _x005F_x000D_ 14 × 3 ÷ 27 + 54 − 9 = 21_x005F_x000D_

A. × and ÷
B. × and −
C. ÷  and −
D.
Answer» D.
2.

Which two numbers should be interchanged to make the given equation correct?_x005F_x000D_  _x005F_x000D_ 28 + 49 − 35 ÷ 7 × 4 = 68_x005F_x000D_

A. 28 and 35
B. 28 and 49
C. 49 and 35
D. 4 and 28
Answer» B. 28 and 49
3.

Which two signs should be interchanged to make the given equation correct?_x005F_x000D_ 121 ÷ 11 + 54 - 9 × 3 = 128_x005F_x000D_

A.
B.
C. ÷ and -
D. x and ÷
Answer» D. x and ÷
4.

Which signs should be interchanged if the equation below needs to be true?_x005F_x000D_  _x005F_x000D_ 1.5 + 8 x 9 - 16 / 2 = 4

A. x and -
B. / and -
C. + and /
D. - and +
Answer» C. + and /
5.

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?_qr_srq_p_rs_r_p

A. pqrsss
B. qprsss
C. pspqsq
D. pspqqq
Answer» D. pspqqq
6.

Which signs should be interchanged if the equation below needs to be true?_x005F_x000D_  _x005F_x000D_ 2 ÷ 16 - 2 + 6 × 1 = 0_x005F_x000D_

A. xand -
B. - and +
C. - and ÷
D. +and x
Answer» D. +and x
7.

Which of the following terms follows the trend of the given list?_x005F_x000D_  _x005F_x000D_ QPQPQRPQP, QPQPRQPQP, QPQRPQPQP, QPRQPQPQP, QRPQPQPQP, _______________._x005F_x000D_

A. RQPQPQPQP_x005F_x000D_
B. QPQPQPRQP_x005F_x000D_
C. QPQPQRPQP
D. QPQPRQPQP
Answer» B. QPQPQPRQP_x005F_x000D_
8.

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it? _AB_PQ_AB_P_

A. QQCPR
B. RPQCQ
C. QRCRC
D. CRCRQ
Answer» E.
9.

Which of the following terms follows the trend of the given list? XYXYXYxy, XYXYXyxY, XYXYxyXY, XYXyxYXY, XYxyXYXY, _______________.

A. xyXYXYXY
B. XYXYXYxy
C. XYXYXyxY
D. XyxYXYXY
Answer» E.
10.

Which of the following terms follows the trend of the given list?_x005F_x000D_ XxXXXXX, XXxXXXX, XXXxXXX, XXXXxXX, XXXXXxX, _______________.

A. xXXXXXX
B. XxXXXXX
C. XXXXXXx
D. XXxXXXX
Answer» D. XXxXXXX
11.

Which of the following terms follows the trend of the given list?_x005F_x000D_  _x005F_x000D_ ABCABcaBC, ABCAbcABC, ABCabCABC, ABcaBCABC, AbcABCABC, _______________x005F_x000D_

A. ABCABCabC_x005F_x000D_
B. abCABCABC_x005F_x000D_
C. ABCABcaBC_x005F_x000D_
D.
Answer» C. ABCABcaBC_x005F_x000D_
12.

Which of the following signs and numbers should be interchanged such that for the following expression, LHS = RHS_x005F_x000D_  _x005F_x000D_ 6 x 4 + 4 = 16_x005F_x000D_

A. x with +, 6 with 2
B. x with +, 4 with 2
C. x with +, 16 with 6
D. x with +, 4 with 6
Answer» E.
13.

Which of the following interchange of signs would make the equation correct?_x005F_x000D_ 5 + 3 x 8 ­ 12 ÷ 4 = 3

A. ­- and ÷
B.
C.
D. + and ­-
Answer» B.
14.

Two friends X and Y start from a place A; X moves 20 km towards South and Y moves 15 km towards East. The shortest distance between X and Y is ___.

A. 50 km
B. 25 km
C. 35 km
D. 45 km
Answer» C. 35 km
15.

Two motorcyclists P and Q start from the same point. P rides 11 km West, then turns South and rides 16 km, then turns to his right and rides 14 km. Q rides 30 km South, then turns to his right and rides 25 km. Where is Q with respect to P now?

A. 14 km North
B. 14 km South
C. 44 km South
D. 44 km North
Answer» C. 44 km South
16.

The question below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in which of the statements are sufficient to answer the question. Choose your answer from the options based on this._x005F_x000D_  _x005F_x000D_ What is the code of “Actor”? I. In a certain language, “road trip wine” is written as “bk mk tk” and “wine actor photo” is written as “gk rk bk”. II. In a certain language, “photo wine cycle” is written as “bk ak rk” and “cycle actor photo” is written as “gk ak rk”.

A. The data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
B. The data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
C. The data either in statement I alone or in statement II alone are sufficient to answer the question.
D. The data in both the statements I and II together are not sufficient to answer the question.
Answer» C. The data either in statement I alone or in statement II alone are sufficient to answer the question.
17.

The following equation is incorrect. Which two signs should be interchanged to correct the equation? 12 - 6 x 5 + 20 ÷ 4 = 31

A.
B.
C. - and +
D. ÷ and x
Answer» C. - and +
18.

Some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis._x005F_x000D_ 8x7x6=7655x3x2=4219x6x4= ?

A. 583
B. 853
C. 841
D. 481
Answer» C. 841
19.

Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis. If 98-39-27=31, 87-38-34=20, then 79-25-12 = ?

A. 51
B. 22
C. 42
D. 15
Answer» B. 22
20.

Some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis:_x005F_x000D_ 2 x 3 x 5 = 5236 x 4 x 1 = 1648 x 2 x 4 = 482,_x005F_x000D_ then 6 x 8 x 2 = ?

A. 826
B. 268
C. 286
D. 628
Answer» C. 286
21.

Some equations are solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis._x005F_x000D_ 5 x 4 x 3 = 70 ,6 x 5 x 4 = 1407 x 6 x 5 = ?

A. 210
B. 220
C. 230
D. 240
Answer» E.
22.

Some equations are solved on the basis of certain system. Find out the correct answer for unsolved equation on that basis: 4 x 5 x 8 = 584, 7 x 3 x 9 = 397, 9 x 7 x 3 = ?

A. 397
B. 793
C. 973
D. 739
Answer» E.
23.

Select the missing term based on the given related pair of terms._x005F_x000D_  _x005F_x000D_ COULD : BNTKC :: MOULD : ____x005F_x000D_  _x005F_x000D_

A. CHMFI
B. LNKTC
C. NITKH
D. LNTKC
Answer» E.
24.

Some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis:_x005F_x000D_ 7*4*3 = 4378*6*4=6484*3*6=?

A. 346
B. 364
C. 643
D. 463
Answer» C. 643
25.

Select the related word from the given alternatives._x005F_x000D_  _x005F_x000D_ If FROG : 9268, RANG : 2538, then FORT is coded as __.

A. 9327
B. 9762
C. 9627
D. 9672
Answer» D. 9672
26.

Select the letter-cluster that can replace the question mark (?) in the following series._x005F_x000D_ NAVIGATE, PCVIGATE, NAXKGATE, ? , NAVIGAVG_x005F_x000D_

A. PCVIICUG
B. NAXKICTE
C. NAVIICTE
D. NAVIJCTF
Answer» D. NAVIJCTF
27.

Select the correct combination of mathematical signs to replace * signs and to balance the equation._x005F_x000D_ 48 * 4 * 6 * 3 * 30

A. -, +, =, x
B. ÷, =, x, +
C. ÷, +, x, =
D. -, =, x, +
Answer» D. -, =, x, +
28.

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

A. +, - , +
B. x, +, x
C. -, +, x
D. x, x, x
Answer» D. x, x, x
29.

Select the correct set of symbols_x005F_x000D_  _x005F_x000D_ 27  3   19   10  =  90_x005F_x000D_

A. x, - , /
B. +, /, -
C. +, -, /
D. x, +, -
Answer» E.
30.

Select the appropriate combination of mathematical operators to be sequentially placed between the numbers given on the left of the following equation so that LHS = RHS._x005F_x000D_  _x005F_x000D_ 5035 = 20_x005F_x000D_

A. + x -
B.
C.
D. x + -
Answer» D. x + -
31.

RHYTHM is related to MUSIC in the same way as DESIGN is related to

A. ARCHITECT
B. BUILDING
C. BEAUTY
D. SYMMETRY
Answer» C. BEAUTY
32.

Replace # sign with the mathematical operators '+', '/','-'or'=' to get a balanced equation out of 186 # 31 # 36 # 30._x005F_x000D_

A. + / =
B. - = +
C. - + /
D. / = -
Answer» E.
33.

Interchanging which two signs will make the following equation correct?_x005F_x000D_  _x005F_x000D_ 42 / 4 + 2 - 3 x 5 = 29

A.
B. + and -
C.
D. / and +
Answer» E.
34.

Rearrange the jumbled up letters to form a meaningful word and find the odd one out.

A. ESAEIDS
B. EAHLTH
C. LISESNL
D. CKSESNS
Answer» C. LISESNL
35.

Insert mathematical symbols in the place of ? to get the result._x005F_x000D_ ((10?10)?25)?10 =10_x005F_x000D_

A. −, ×, ÷
B. ×, ×, +
C. +, ÷, ÷
D. −, ×, +
Answer» E.
36.

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_ 462 = 551398 = 487856 = ?

A. 745
B. 773
C. 945
D. 743
Answer» D. 743
37.

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_ 3X4X5 = 4354X3X2 = 3422X3X4= ?

A. 324
B. 342
C. 432
D. 243
Answer» B. 342
38.

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_ 7x6x8=6788x9x7=9876x5x7=5675x4x6=?

A. 456
B. 564
C. 645
D. 654
Answer» B. 564
39.

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_ 7 x 5 x 6 = 576,4 x 2 x 5 = 245,8 x 2 x 5 = ?

A. 258
B. 285
C. 582
D. 852
Answer» C. 582
40.

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_ 53 ­ 34 = 533465 ­ 46 = 645675 ­ 24 = ?

A. 7542
B. 7524
C. 7452
D. 7254
Answer» E.
41.

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_ 8 x 5 x 0 = 805 , 7 x 4 x 6 = 764 , 6 x 8 x 9 = ?

A. 689
B. 698
C. 968
D. 986
Answer» C. 968
42.

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_ 6 x 2 x 9 = 269_x005F_x000D_ 8 x 7 x 1 = 781_x005F_x000D_ 4 x 1 x 3 = ?

A. 431
B. 413
C. 341
D. 143
Answer» E.
43.

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.Statement:Y > A < N, Y = B AII. N > B

A. If only conclusion I follow.
B. If only conclusion II follow.
C. If either conclusion I or conclusion II follows.
D. If neither conclusion I nor II follows.
Answer» B. If only conclusion II follow.
44.

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.Statement: X = M < A < S = T < R_x005F_x000D_ Conclusion:I. M = TII. R > A

A. If only conclusion I follow.
B. If only conclusion II follow.
C. If either conclusion I or conclusion II follows.
D. If neither conclusion I nor II follows.
Answer» C. If either conclusion I or conclusion II follows.
45.

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.Statement:A = M >P, N > R, A > TConclusion:I. T = PII. R < A

A. If only conclusion I follow.
B. If only conclusion II follow.
C. If either conclusion I or conclusion II follows.
D. If neither conclusion I nor II follows.
Answer» E.
46.

In the question, a word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g., 'L' can be represented by 12, 24 etc., and 'R' can be represented by 55, 67 etc. Similarly you have to identify the set for the word 'SENT'_x005F_x000D_

A. 10, 20, 58, 77
B. 22, 32, 65, 78
C. 34, 44, 67, 87
D. 41, 13, 87, 68
Answer» C. 34, 44, 67, 87
47.

In the following equation, if the mathematical operators '-' and 'X' are interchanged then the value of 4-6+1×15÷3 will be_x005F_x000D_  _x005F_x000D_

A. 24
B. 20
C. -5
D. -4
Answer» D. -4
48.

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?c_e_cd_f_d_f

A. dfcec
B. dfece
C. cfede
D. cdfed
Answer» C. cfede
49.

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?_x005F_x000D_  _x005F_x000D_ X_ZX_YY_ZX_Z_x005F_x000D_

A. XXYY
B. YXZY
C. YYXY
D. XXXY
Answer» C. YYXY
50.

In certain code language, 'FOX' is coded as '108' and 'SOUP' is coded as '148'. How will 'UPSIDE' be coded as in that language?_x005F_x000D_

A. 528
B. 590
C. 385
D. 494
Answer» B. 590