\(A, B, C\text{ and }D\text{ are distinct positive integers such that the product }AB = 60\text{, the product }CD = 60\text{ and }A - B = C + D .\text{ What is the value of A?} \)
Use substitutions to get the following values:
A =20, B =3, C =12, D =5
AB =20 x 3 =60, CD =12 x 5 =60, A - B = C + D =20 - 3 = 12 + 5.
