Question

how to solve this question

Answer 1

lb=20; bh=32; lh=40 ... (1) l=20/b, h=32/b sub in (1) ... (2)... (3) (20/b)(32/b)=40
16/b^2=1
b=4m sub in (2) and (3)
l=5m and h=8
hence, volume =(5)(4 )(8)
=160m^3