The width of a rectangular prism is 30 cm. This is 12 more than one-fourth of the length. Find the volume of the prism, given the height, is 20 cm.

P.S. I need this question by 01-26-18

2 answers

30 - 12 = L/4
18 = L/4
L = 4*18

V = 30 * 4*18 * 20
18