How many numbers from 1 to 100 are not divisible by 3 or 5?

A47

B43

C53 ✓ Correct

D58

Correct answer: (C) 53

Explanation

53 numbers from 1 to 100 are divisible by neither 3 nor 5.

Multiples of 3 = 33, multiples of 5 = 20, multiples of 15 = 6.

Divisible by 3 or 5 = 33 + 20 - 6 = 47.

Not divisible by either = 100 - 47.

= 53.

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