Question

James wants to pour a patio that is 18 feet by 20 feet. He wants the concrete to be 6 inches deep. How many cubic feet of concrete mix are needed for the patio? [1 ft = 12 inches]

A) 45 cubic feet
B) 90 cubic feet
C) 180 cubic feet
D) 240 cubic feet

Answer 1

The correct answer would be C) 180 cubic feet.

WORK: 18 x 20 = 360, 6/12 = 0.5... then multiply 360 x 0.5 and you get 180