14
Q:

# Insert the missing number.16, 33, 65, 131, 261, (....)

 A) 523 B) 521 C) 613 D) 721

Explanation:

Each number is twice the preceding one with 1 added or subtracted alternatively.

So, the next number is (2 x 261 + 1) = 523.

Q:

Find the odd one out of the floowing number series?

270, 261, 279, 252, 289, 243

 A) 270 B) 279 C) 289 D) 243

Explanation:

Here the given number series is 270, 261, 279, 252, 289, 243

270 - 9 = 261

261 + 18 = 279

279 - 27 = 252

252 + 36 = 288 (not equals to 289)

288 - 45 = 243

Hence, the odd number in the given number series is 289.

0 0
Q:

Find the next number in the number series?

6, 6, 9, 18, 45, ?

 A) 87 B) 99.75 C) 115.5 D) 135

Explanation:

The given number series is 6, 6, 9, 18, 45, ?

Here the series follows a pattern that,

6 x 1 = 6

6 x 1.5 = 9

9 x 2 = 18

18 x 2.5 = 45

45 x 3 = 135

Hence, the next number in the given number series is 135.

0 73
Q:

Find the odd one out of the following number series?

56, 64, 48, 90, 16, 144

 A) 48 B) 64 C) 90 D) 16

Explanation:

The given number series follows a pattern that,

56

56 + 8 = 64

64 - 16 = 48

48 + 32 = 80 (Not equal to 90)

80 - 64 = 16

16 + 128 = 144

Hence, the odd number in the given number series is 90.

1 114
Q:

Find the next number in the following number series?

410, 409, 413, 404, ?

 A) 412 B) 415 C) 418 D) 420

Explanation:

The given number series 410, 409, 413, 404, ? , follows a pattern that

410

Hence, the next number in the given series is 420.

3 136
Q:

Find the next number in the given number series?

50, 51, 47, 56, 40, ?

 A) 58 B) 65 C) 76 D) 81

Explanation:

The given number series is 50, 51, 47, 56, 40, ?

Hence, the next number in the given number series is 65.

2 100
Q:

Find the odd one out of the following number series?

9 5 6 14 56 488

 A) 56 B) 6 C) 14 D) 5

Explanation:

The given number series follows a pattern that,

9

9 x 0.5 + 0.5 = 5

5 x 1 + 1 = 6

6 x 2 + 2 = 14

14 x 4 + 4 = 60 (not equals to 56)

60 x 8 + 8 = 488.

Hence, the odd one in the given number series is 56.

1 96
Q:

Find the odd man out in the following number series?

71, 88, 113, 150, 203, 277

 A) 277 B) 203 C) 150 D) 113

Explanation:

The given number series is

71      88       113       150       203          277

+17    +25       +37      +53        +74

+8      +12        +16       +21

+4          +4         +5

The series should be  71  88  112   150    203   276 i.e, the differences of the difference should be +4.

Hence, the odd man in the given series is 277.

1 142
Q:

Find the next number in the following number series?

11, 13, 30, 96, ?

 A) 264 B) 392 C) 412 D) 459

Explanation:

The given number series 11, 13, 30, 96, ? follows a pattern that,

11

11 x 1 + 2 = 13

13 x 2 + 4 = 30

30 x 3 + 6 = 96

96 x 4 + 8 = 392

Hence, the next number in the given series is 392.