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Question

In following questions, one term in number series is incorrect.
Find out the incorrect number 15, 16, 22, 29, 45, 70

A
16
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B
22
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C
45
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D
70
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Solution

The correct option is B 22
The 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.

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