Civil Services Preliminary Exam 2020 Paper-2 : Solutions -16

A simple mathematical operation in each number of the sequence 14, 18, 20, 24, 30, 32, ..... results in a sequence with respect to prime numbers. Which one of the following is the next number in the sequence?
(a) 34
(b) 36
(c) 38
(d) 40
Solution by Arbind Singh
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