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?
34
36
38
40
We can see that by subtracting 1 from each term, we will get a sequence of primes. 14 – 1 = 13; 18 – 1 = 17; 20 – 1 = 19; 24 – 1 = 23; 30 -1 = 29; 32 – 1 = 31. So the next term will be 38 – 1 = 37 which is also a prime number. Ans is ©
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