Question

Julio had 1000 sq. ft. of living space. Then he added a room that was 20 ft. by 10 ft. TO What was the fractional increase of living space? 1 OA OB. OC. . 1 5 O D. 1 O E. 5

Answer 1

Given a rectangle with dimension l by w, then

`\text{ area of the rectangle = }l* w`

Since the room is rectangular, then

`\text{ area of the room = }20*10=200ft^2`

fractional increase = increase / (original area)

the increase = 200 square feet,

and the original area of the living space = 1000 square feet.

Therefore,

`\text{ fractional increase = }(200)/(1000)=(2)/(10)=(1)/(5)`

The correct option is C