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Question : Directions: Find the wrong number in the following series.
16, 16, 17, 21, 27, 46, 71

Option 1: 27

Option 2: 46

Option 3: 16

Option 4: 71


Team Careers360 25th Jan, 2024
Answer (1)
Team Careers360 26th Jan, 2024

Correct Answer: 27


Solution : Given:
16, 16, 17, 21, 27, 46, 71

Add the square of the consecutive whole numbers to the previous term to obtain the next term –
16 + (0) 2 = 16; 16 + (1) 2 = 17; 17 + (2) 2 = 21; 21 + (3) 2 = 30 ≠ 27; 30 + (4) 2 = 46; 46 + (5) 2 = 71

So, 27 is the wrong term in the given series. Hence, the first option is correct.

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