Note that any odd integer greater than 3 can be expressed as the sum of a positive multiple of 2 and an odd prime. For example, 5 = 2 + 3, 17 = 4 + 13, 27 = 4 + 23 etc.guerrero wrote:How many positive integers less than 30 are either a multiple of 2, an odd prime number, or the sum of a positive multiple of 2 and an odd prime?
Now, all the positive integer less than 30 except 1 are either even (multiple of 2), or odd (sum of a positive multiple of 2 and an odd prime), or odd prime (3).
So, number of such integers = 30 - 1 = 29
The correct answer is A.
