In this type of questions, one term in the number series is wrong. Find out the wrong term.
15, 16, 22, 29, 45, 70
Answer: Option B
Explanation:
The correct pattern is + 1, + 4, + 9, + 16, + 25 i.e. + 12, + 22, + 32, + 42, + 52.
So, 22 is wrong and must be replaced by (16 + 4) i.e. 20.
8, 14, 26, 48, 98, 194, 386
The correct pattern is x 2 - 2.
So, 48 is wrong and must be replaced by (26 x 2 - 2) i.e. 50.
3, 10, 27, 4, 16, 64, 5, 25, 125
Answer: Option C
The correct sequence is 3, 32, 33, 4, 42, 43, 5, 52, 53.
So, 10 is wrong and must be replaced by 32 i.e. 9.
1, 5, 9, 15, 25, 37, 49
The terms of the given series are 12, (22 + 1), 32, (42..+ 1), 52, (62 + 1), 72.
So, 15 is wrong and must be replaced by (42 + 1) i.e. 17.
4, 10, 22, 46, 96, 190, 382
The correct pattern is + 6, + 12, + 24, + 48, + 96, + 192.
So, 96 is wrong and must be replaced by (46 + 48) i.e. 94.
