1. Which of these numbers is neither a multiple of 3 , nor a multiple of 4 ?
A 16
B 21
C 28
D 34
E 45
1. D Both 21 and 45 are multiples of 3. Also, both 16 and 28 are multiples of 4 . However, 34 is neither a multiple of 3 , nor a multiple of 4 .