# Missing Numbers Quiz Set 004

### Question 1

What is missing?

A

9.

B

6.

C

15.

D

14.

Soln.
Ans: b

Sum of all the rows is same: (4 + 9 + 2) = (3 + 5 + 7) = 8 + 1 + 6 = 15.

### Question 2

9, 11, 20, 31, (?), 82.

A

41.

B

51.

C

71.

D

60.

Soln.
Ans: b

Every number is equal to sum of the previous two numbers.

9, 11, 20, 31, 51, 82.

9 + 11 = 20.

20 + 11 = 31.

31 + 20 = 51.

51 + 31 = 82.

### Question 3

2, 15, 41, 80, (?)

A

111.

B

120.

C

121.

D

132.

Soln.
Ans: d

2 (+13), 15 (+26), 41 (+39), 80 (+52), 132.

### Question 4

Directions : One number is wrong in the series. Find out the wrong number.

864, 420, 200, 96, 40, 16, 6

A

420

B

200

C

96

D

40

Soln.
Ans: c

Pattern of the series from the right end follows the rule:

6 × 2 + 4 = 16, 16 × 2 + 8 = 40, 40 × 2 + 12 = 92, 92 × 2 + 16 = 200 . . . and so on.

Therefore, number 96 should be replaced by 92.

### Question 5

7, 12, 19, (?), 39.

A

28.

B

26.

C

24.

D

29.

Soln.
Ans: a

7 (+5), 12 (+7), 19 (+9), 28 (+11), 39.