Question

Replace * by a digit to make 9*8071 divisible by 11

Answer 1

Your answer will be 918071 - Because if the difference of the sums of the numbers in the even and odd places is 0 or divisible by 11, the whole number is divisible by 11. IN this case, 9+8+7 = 24 and 1+1 = 2 so 24 - 2 = 22, which is a multiple of 11.