5
Q:

# What number should replace the question mark?125, 138, 164, ?, 255

 A) 189 B) 197 C) 200 D) 203

Explanation:

The given number series is 125,   138,   164,   ?,   255

125

125 + 13x1 = 138

138 + 13x2 = 164

164 + 13x3 = 203

203 + 13x4 = 255

Hence, the missing number in the series is 203.

Q:

Find the odd man out 1 4 9 16 22 36?

 A) 9 B) 16 C) 22 D) 36

Explanation:

In the given series 1 4 9 16 22 36

1 = 1 x 1

4 = 2 x 2

9 = 3 x 3

16 = 4 x 4

25 = 5 x 5 (Not 22)

36 = 6 x 6

Hence, the odd man in the series is 22.

1 263
Q:

Find the odd man out of the series given

8, 16, 20, 36, 68

 A) 68 B) 36 C) 20 D) 16

Explanation:

The given number series is 8, 16, 20, 36, 68

8

8 x 2 - 4 = 12 (NOT 16)

12 x 2 - 4 = 20

20 x 2 - 4 = 36

36 x 2 - 4 = 68

Hence, the odd man in the given series is 16.

2 696
Q:

8, 14, 24, 60, 180

Find the odd man out of the series?

 A) 180 B) 60 C) 24 D) 14

Explanation:

The given series is 8, 14, 24, 60, 180

8

8 x 1.5 = 12 (NOT 14)

12 x 2 = 24

24 x 2.5 = 60

60 x 3 = 180

Hence, the odd man in the given series is 12.

0 585
Q:

Mark the odd man out of the series?

1 6 27 124 650

 A) 27 B) 124 C) 6 D) 650

Explanation:

The given series is 1 6 27 124 650

1

1 + 2 x 2 = 6

6 + 3 x 3 = 27

27 + 4 x 4 = 124

124 + 5 x 5 = 645 (NOT 650)

Hence, the odd man in the given number series is 650.

4 694
Q:

1000, 1012, 988, 1024, 978 Odd man out?

 A) 978 B) 1024 C) 988 D) 1012

Explanation:

The given series is 1000, 1012, 988, 1024, 978

1000

1000 + 12 = 1012

1012 - 24 = 988

988 + 36 = 1024

1024 - 48 = 976 (Not 978)

0 269
Q:

Odd man out of the series - 15, 19, 27, 38, 55, 75?

 A) 27 B) 38 C) 55 D) 75

Explanation:

The given series is 15, 19, 27, 38, 55, 75

15

15 + 4 = 19

19 + 8 = 27

27 + 12 = 39

39 + 16 = 55

55 + 20 = 75

Hence, the odd number in the given series is 38.

1 287
Q:

Find the wrong number in the given number series?

5, 8, 40, 90, 664

 A) 8 B) 40 C) 90 D) 664

Explanation:

The given number series is 5, 8, 40, 90, 664

5

5 - 1 x 2 = 8

8 - 3 x 4 = 20 (NOT 40)

20 - 5 x 6 = 90

90 - 7 x 8 = 664

0 1060
Q:

152, 124, 96, 69, 40

Find the odd man out?

 A) 124 B) 96 C) 69 D) 40

Explanation:

The given number series is 152, 124, 96, 69, 40

152

152 - 28 = 124

124 - 28 = 96

96 - 28 = 68 (not 69)

68 - 28 = 40

Hence, the odd man in the given number series is 69.