Question

What is the value of x so that the seven-digit number 8439 × 53 is divisible by 99?

Options

• 9

• 4

• 3

• 6

Answer 1

4

Explanation:

8439 × 53 is divisible by 99

i.e. given number is divisible by 11

∴ (3 + x + 3 + 8) – (5 + 9 + 4) = 0

∴ x = 4