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Find the wrong number in the following number series.
3 , 7 , 16 , 35 , 70 , 153
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- 70
- 16
- 153
- 35
- 70
Correct Option: A
The pattern is :
3 × 2 + 1 = 6 + 1 = 7
7 × 2 + 2 = 14 + 2 = 16
16 × 2 + 3 = 32 + 3 = 35
35 × 2 + 4 = 70 + 4 = 74 ≠ 70
Here , 70 is wrong term . So , 74 will be correct term .
74 × 2 + 5 = 148 + 5 = 153
Thus , required answer is 70.
