Question

Which of the following numbers is divisible by 11?

• A. 28412
• B. 28424
• C. 38149
• D. 12365

Answer 1

The correct option is B 28424

For a number to be divisible by 11, we add the numbers at odd places and even places and subtract the sums. If the answer is 0 or divisible by 11, then the number is divisible by 11.

$28424:(4+4+2)-(2+8)=10-10=0$

$28412:(2+4+2)-(1+8)=8-9=-1$

$38149:(9+1+3)-(4+8)=13-12=1$

$12365:(5+3+1)-(6+2)=9-8=1$

$\therefore$ Among the given numbers, only 28424 is divisible by 11.