Let . Then the number of elements in is…

MATHEMATICS · Single correct · GCSE · Mathematics · Number · Number

Problem

Let

A = \{n \in [100, 700] \cap \mathbb{N} : n \text{ is neither a multiple of 3 nor a multiple of 4}\}

. Then the number of elements in

A

is ____. (A) 300 (B) 280 (C) 310 (D) 290