The height of the wall is 4 times its width and length of the wall is 3 times its height .if the volume of the wall be 10368 cu.m.its width is  Choose the correct choice from the following answers
A) 4 m
B) 5 m
C) 6 m
D) 7 m
E) 8 m

Rationale: "explanation : let width = x then , height = 4 x and length = 12 x 12 x ã — 4 x ã — x = 10368 x = 6 answer : c"
Answer: C