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Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
27, 38, ?, 68, 87, 110

Option 1: 47

Option 2: 50

Option 3: 51

Option 4: 53


Team Careers360 19th Jan, 2024
Answer (1)
Team Careers360 22nd Jan, 2024

Correct Answer: 51


Solution : Given:
27, 38, ?, 68, 87, 110

Add consecutive prime numbers (starting from 11) to each number in the given series to get the next number of the series.
27 + 11 = 38; 38 + 13 = 51; 51 + 17 = 68; 68 + 19 = 87; 87 + 23 = 110

So, 51 is the missing number. Hence, the third option is correct.

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