Question

If 4xy7 is exactly divisible by 3, then the least value of (x + y) is​

Answer 1

the number 4xy implies that it is a multiple of 4.the least multiple that is exactly divisible by 3 is 12.

so 4xy=12

xy=3

the only values of X and Y are 1 and 3.

so the answer is 4.