The remainder when m + n is divided by 12 is 8, and the remainder when m – n is divided by 12 is 6. If m > n, then what is the remainder when mn divided by 6 ?

(m+n)/12 remainder is 8 so m + n = 8 + 12 = 20
(m-n)/12 remainder is 6 so m – n = 6 + 12 = 18
Solving this m = 19,n = 1
( m * n ) / 6 = ( 19 * 1 ) / 6 remainder is 1.