Question

A contractor digs a hole for the basement of a new house that is 40 feet long and 10 1/2 feet deep. What is the width of the hole if 6,510 cubic feet of dirt are removed?

Answer 1

Volume = L * W * D 6,510
= 40 * W * 10.5
 W = 6,510/(40 * 10.5)  
   = 15.5 ft
hope this helps