Question

Carmen's swimming pool has the shape of a rectangular prism

with a length of 20 feet, a width of 10 feet, and a depth of 5

feet. The pool will be filled with water until the water level is 1 1/2 feet from the top of the pool. Which volume of water will be filled into the pool?


A. 1000 cubic feet

B. 700 cubic feet

C. 500 cubic feet

D. 300 cubic feet

Answer 1

(B) 700 cubic feet

Explanation:

The height of water in the pool is 5 - 1 1/2 = 3 1/2 feet.

The volume of water needed to fill the pool up to 3 1/2 feet is:

20 feet x 10 feet x 3 1/2 feet = 700 cubic feet

Therefore, the answer is (B) 700 cubic feet.

Answer 2

`1(1)/(2) = (3)/(2) = 1.5`

`20 (10) (5-1.5) = 200(3.5) = 700 \ cubic \ feet`