**A,B, C and D are four positive numbers such that A is $$ \\frac{3}{4} $$ times of B, B is $$ \\frac{4}{5} $$ times of C, and C is $$ \\frac{3}{8} $$ times of D. If the average of 4 times of A and 7 times of D is 316, then the average of all the four numbers A, B, C and D is:** A) 36 B) 38 C) 28 D) 34 Click Link for Answer