REASONING Q & A FOR NDA/CDS EXAMS
1) Which number should come next in the series, 48, 24, 12, ……?
A.8
B.6
C.4
D.2
Answer: B
2) In this series, 46, 44, 40, 38, 34, _, which number should come next?
A.30
B.36
C.32
D.31
Answer: C
REASONING Q & A FOR NDA/CDS EXAMS
3) Which number would fill the empty space in the series; 4, 7, 12, 19, _, 39?
A.28
B.26
C.24
D.22
Answer: A
4) Which number would replace the underline mark in the series 20, 40, 100, _, 820?
A.240
B.260
C.280
D.300
Answer: C
REASONING Q & A FOR NDA/CDS EXAMS
5) What are the missing numbers in this series, 15, 20, 24, 15, 28, 32 15, _, _, 15?
A. 37, 41
B. 36, 40
C. 38, 42
D. 40, 44
Answer: B
6) In the series, 77, 70, 63, 56, 49, _, which number should come next?
A.42
B.46
C.44
D.48
Answer: A
7) In the series; 41, 39, 35, 33, 29, _, which number should come next?
A.23
B.24
C.25
D.27
Answer: D
8) In this series, 12, 24, 14, 28, 18, 36, __, which number should come next?
A.24
B.25
C.26
D.28
Answer: C
9) In this series, 1536, 384, 96, _, which number should come next?
A.24
B.28
C.18
D.16
Answer: A
10) Find the missing number in the series; 1, 2, 3, 10 _.
A.89
B.99
C.79
D.69
Answer: B
REASONING Q & A FOR NDA/CDS EXAMS
11) What is the average of 1st five multiples of 12?
A.36
B.38
C.40
D.42
Answer. A
12) If the average of three consecutive even numbers is 34, find the largest of these numbers.
A.30
B.32
C.34
D.36
Answer. D
13) Average of 5 numbers is 20. If each number is multiplied by 2, what will be the new average?
A.30
B.40
C.50
D.60
Answer. B
REASONING Q & A FOR NDA/CDS EXAMS
14) 10 typists can type 600 pages in 8 hours. Find the average number of pages typed by each typist in an hour.
A. 7 pages
B. 7.5 pages
C. 8 pages
D. 8.5 pages
Answer. B
15) The average of Sohan’s marks in 6 subjects is 74. If his average in 5 subjects excluding science is 70, how many marks he obtain in science?
A.94
B.92
C.90
D.88
Answer. A
REASONING Q & A FOR NDA/CDS EXAMS
16) Average age of a group of 30 boys is 16 years. A boy of age 19 leaves the group and a new boy joins the group. If the new average age of the group is 15.8 years, find the age of the new boy.
A.12 years
B.13 years
C.14 years
D.15 years
Answer. B
17) The average weight of 10 men is decreased by 2 kg when one of them whose weight is 60 kg is replaced by a new man. What is the weight of the new man?
A.35 kg
B.40 kg
C.45 kg
D.50 kg
Answer B
REASONING Q & A FOR NDA/CDS EXAMS
18) The average age of 30 boys in a class is 15 years. If we include the age of two teachers the average age increases by 1. Find the sum of ages of the two teachers.
A. 55 years
B. 58 years
C. 62 years
D. 64 years
Answer. C
REASONING Q & A FOR NDA/CDS EXAMS
19) The average age of the committee of 10 members is 40 years. A member of age 52 retires and a new member of age 38 takes his place. What is the average age of the present committee?
A. 38.6 years
B. 33.5 years
C. 35.5 years
D. 37.5 years
Answer. A
REASONING Q & A FOR NDA/CDS EXAMS
20) 4years ago, the average age of A and B was 20 years. If the today average age of A, B and C is 25 years, what will be an age of C after 7 years?
A.32 years
B.34 years
C.36 years
D.38 years
Answer. B
REASONING Q & A FOR NDA/CDS EXAMS|REASONING Q & A FOR NDA/CDS EXAMS
