if x and y are positive integers and 25 x = 10 y what is the least possible value of xy ?
"25 x = 10 y = > x / y = 2 / 5 = > 5 x = 2 y 5 ( 3 ) = 2 ( 3 ) = > x * y = 9 but it is not given 5 ( 5 ) = 2 ( 5 ) = > x * y = 25 b"
add(10, const_1)