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Q.

Find out the wrong number from the following number series ?

18, 20, 23, 32, 48, 73, 109

A 18
B 20
C 32
D 73
Answer & Explanation
Option: [B]

The wrong number from the given series is 20. It is replaced by 19

18 + 12

19 + 22

23 + 32

32 + 42

48 + 52

73 + 62

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