Question

If the number 1005x4 is completely divisible by 8, then the smallest integer in place of x will be:

• A. 0
• B. 1
• C. 4
• D. 2

Answer 1

Answer:

A. 0

By Divisibility of 8: Last three digits of the number should be divisible by 8. Hence, in the number 1005x4 5x4 must be divisible by 8. if x = 0 we have 504 which is divisible by 8 . Hence smallest integer in place of x should be 0.