Question

Siobhan wants to have a beach party in January. Her parents said she can use the garage, which is 36 feet long and 20 feet wide. If she wants to cover the floor with 2 inches of sand, how much sand does she need?

A. 120 cubic feet
B. 720 cubic feet
C. 1440 cubic feet
D. 4320 cubic feet

36 * 20 = 720
720 * 2 = 1440

Answer 1

if all dimensions are in feet, the height of sand is 1/6 foot
So the volume is 36*20/6 = 120 ft^3

Answer 2

I'm so confused. Where did you get the six from, to divide with 720?

Answer 3

do you read what I write?
2 inches of sand is 1/6 foot!