## Number Series

#### Number Series

1. 3, 7, 16, 32, 56, 93, 142

1. The series is 22, + 32, + 42, + 52, + 62, + 72 .
The wrong no. is 56; 32 + 52 = 32 + 25 = 57

##### Correct Option: A

The series is 22, + 32, + 42, + 52, + 62, + 72 .
The wrong no. is 56; 32 + 52 = 32 + 25 = 57

1. 4, 5, 12, 38, 160, 805, 4835

1. The series is x 1 + 1, x 2 + 2, x 3 + 3, x 4 + 4, x 5 + 5, x 6 + 6.
The wrong no. is 38; 12 x 3 + 3 = 36 + 3 = 39

##### Correct Option: C

The series is x 1 + 1, x 2 + 2, x 3 + 3, x 4 + 4, x 5 + 5, x 6 + 6.
The wrong no. is 38; 12 x 3 + 3 = 36 + 3 = 39

Direction: In the following number series only one number is wrong. Find out the wrong number.

1. 8, 11, 17, 47, 128, 371, 1100

1. The series is x 3 - 13

##### Correct Option: C

The series is x 3 - 13

1. 1, 5, 13, 31, 61, 125, 253

1. The series is + 22, + 23, + 24, + 25, + 26, + 27

##### Correct Option: C

The series is + 22, + 23, + 24, + 25, + 26, + 27

Direction: What should come in place of the question mark (?) in the following number series?

1. 9, 62, ?, 1854, 7415, 22244

1. The series is x 7 - 1, x 6 -1, x 5 - 1, x 4 - 1, x 3 - 1

##### Correct Option: D

The series is x 7 - 1, x 6 -1, x 5 - 1, x 4 - 1, x 3 - 1