A new sidewalk will be 5 feet wide, 240 feet long and filled to a depth of 6 inches (0.5 foot) with concrete. How many cubic yards of concrete are needed

22.22 cubic yards

Solution:

Given dа ta:

Length of the side walk = 240 feet

Breadth of the side walk = 5 feet

Height of the side walk = 6 inches = 0.5 feet

Volume = length * breadth * height

= 240 * 5 * 0.5

= 600 cubic feet

Volume = 600 cubic feet

Let us convert cubic feet to cubic yard.

27 cubic foot = 1 cubic yard

600 cubic feet = 600 : 27

= 22.22 cubic yard

Hence 22.22 cubic yards of concrete are needed.