MCQ: Reasoning and Mental Ability, Part 1

 Direction: In each of the following questions there is a series of numbers or alphabetical letters which change in some specific order. Find out which one of these answer would be correct in blank space of series if the numbers or alphabetical letters go on changing in the same order.

1.BR, FH, JL, NP,-----

A) SV
B) SU
C) QS
D) RT

... Answer is D)
one letter of the alphabet is missing between the two letters of each term. One letter is also missing between the last letter of first term and the first letter of the next term.

2.AC, FH, KM, PR,------

A) SU
B) TU
C) UW
D) VW

... Answer is C)
One of the letter is missing between two letters of each term and two letters are missing between the last and first letters of two consecutive terms.

3.GTZ, FSY, ERX, DQW, ----

A) CVP
B) VCP
C) CPV
D) VPC

... Answer is C)
First letter of each are in reverse alphabetical order and so are second and third letters.

4.ADG, GJM, -----

A) MOR
B) GKO
C) MPS
D) WTO

... Answer is C)
There are two letters missing between the two consecutive letters of each term and last latter of the first term is same as the first letter of the next term.

5.GR, IP, KN, ML, ---, ----

A) OJ, RI
B) OJ, QH
C) QG, SF
D) OJ, QS

... Answer is B)
There is a gap of one letter between the first letter of each term while a gap of one letter from reverse side between the second letters of each term

6.ABY, CEY, FIY, JNY, ----

A) ORY
B) OQY
C) OPY
D) OTY

... Answer is D)
First two letters are in alphabetical order while there is a gap of one letter between 4th and 5th letter, gap of 2 letters between 7th and 8th letters and so on.

7.UV, QR, MN, IJ, -----

A) GH
B) CD
C) AB
D) EF

... Answer is D)
Taking from the reverse side there is a gap of 3 letters between the first letters of each term while each two letters of the term are in alphabetical order.

8.PON, RQP, TSR, VUT, ---, ----

A) WUY, YXZ
B) UWV, ZXY
C) UVW, ZYX
D) XWV, ZYX

... Answer is D)
Letters in all the terms are in reverse alphabetical order. Besides, the first letters of each term and the last letters of the next term are same.

9.CE, FI, JL, MP, QS, ---, ---

A) TW, XZ
B) TV, WY
C) TV, XY
D) TV, XZ

... Answer is A)
Between the two letters of each term the gap is alternately of one and two letters.

10.1, 4, 9, 16, 25, ---

A) 48
B) 36
C) 49
D) 64

... Answer is B)
The terms are squares of continuous numbers.

11.2, 4, 7, 11, 16, 22, -----

A) 41
B) 39
C) 25
D) 29

... Answer is D)
The difference between two consecutive terms is increasing by one.

12. 4, 2, 5, 3, 6, 4, 7, 5, 8, ----

A) 4
B) 7
C) 6
D) 3

... Answer is C)
Beginning from the first term i.e. 4, each alternative term is in numerical order and from second term i.e. 2, each alternative term is again in numerical order.

13. 2, 5, 10, 17, 26, 37,----

A) 48
B) 50
C) 46
D) 67

... Answer is B)

14.7, 14, 23, 34, 47, 62,----

A) 79
B) 92
C) 82
D) 94

... Answer is A)

15.2, 4, 12, 48, 240, -----

A) 480
B) 1200
C) 1440
D) 720

... Answer is C)
Each term is double, triple etc. of its previous term.

16.1, 5, 4, 10, 9, 15, 16, 20,-----

A) 27
B) 25
C) 23
D) 30

... Answer is B)

17.114, 225, 336, 447, 558,----

A) 569
B) 779
C) 669
D) 780

... Answer is D)
Each term exceeds by 111 over its previous term.

18.20, 17, 19, 16, 18, 15,-----

A) 15
B) 17
C) 21
D) 22

... Answer is B)
Each of the 1st, 3rd, 5th, term goes on decreasing by 1. Similarly each of the 2nd, 4th, 6th term also goes on decreasing by 1.

19.22, 22, 18, 18, 14, 14, ----

A) 9
B) 10
C) 11
D) 8

... Answer is B)
The terms are in pairs and each pair goes on decreasing by 4.

20.3, 8, 35, 48,-----

A) 64
B) 72
C) 99
D) 96

... Answer is C)