Question

Which of the following is divisible by 3?

• A. 77
• B. 82
• C. 71
• D. 84

Answer 1

The correct option is D 84

If the sum of the digits of a number is divisible by 3, then the number will be divisible by 3.

77 $\Rightarrow$ 7 + 7 = 14
82 $\Rightarrow$ 8 + 2 = 10
71 $\Rightarrow$ 7 + 1 = 8
84 $\Rightarrow$ 8 + 4 = 12
Here, only 12 is divisible by 3.

$\therefore$ 84 is divisible by 3.