# Missing Numbers Quiz Set 003

### Question 1

21, 25, 33, 49, 81, (?)

A

113.

B

97.

C

129.

D

145.

Soln.
Ans: d

21 ( + 4), 25 ( + 8), 33 ( + 16), 49 ( + 32), 81 ( + 64), 145.

### Question 2

Examine this series: 5, 12, 60, 340. If another series is written with the same rule, what number would come in the place E: 7, A, B, C, D, E ?

A

172

B

3224

C

1012

D

20164

Soln.
Ans: d

Number 20164 will come in place of (D). Rule is: 5 X 8 - 28 = 12, then 12 X 7 - 24 = 60, then 60 X 6 - 20 = 340, and so on. On this pattern, A = 7 X 8 - 28 = 28, B = 28 X 7 - 24 = 172, C = 172 X 6 - 20 = 1012, D = 1012 X 5 - 16 = 5044, E = 5044 X 4 - 12 = 20164.

### Question 3

What is missing?

A

45.

B

41.

C

32.

D

40.

Soln.
Ans: a

15 x 2 - 3 = 27, 31 x 2 - 6 = 56 and 45 x 2 - 9 = 81.

### Question 4

A

U.

B

W.

C

X.

D

Y.

Soln.
Ans: b

The sequence in each row is, F(GHI)J(KLM)N; M(NOP)Q(RST)U; O(PQR)S(TUV) W so on.

### Question 5

Two numbers of the following series have been put inside round brackets. Study the series and pick your answer from the four choices given below.

2, 3, (6), 11, 18, (30), 38

A

if the terms in both the brackets are right.

B

if the term in the first bracket is right but the term in the second bracket is wrong.

C

if the term in the first bracket is wrong but the term in the second bracket is right.

D

if the terms in both the brackets are wrong.

Soln.
Ans: b

The number in the 2nd bracket, 30 is wrong and should be replaced by 27 so that series moves with differences of odd natural numbers 1, 3, 5, 7, 9, 11.