Four positive integers A, B, C, and D have a sum of 36. If A + 2 = B - 2 = C + 4 = D - 4, what is the value of the product A*B*C*D?
A=7, B=11, C=5 and D=13
7 + 2 =11 - 2 =5 + 4 =13 - 4 ==9
Their product =7 x 11 x 5 x 13 ==5,005
