Julio had 1000 sq. ft. of living space. Then he added a room that was 20 ft. by 10 ft.

What was the fractional increase of living space?

A: 1/10

B: 1/20

C: 1/5

D:3/10

E: 2/5

Answer: the fractional increase is 1/5

Step-by-step explanation:

The initial area of Julio's living room was 1000 sq. ft. Then he added a room that was 20 ft. by 10 ft. The area of the room that was added to the living room would be

20 * 10 = 200 square feet

The new area of the room would be

1000 + 200 = 1200 square feet

Therefore, the fractional increase of the living space would be

Increase in area/original area

It becomes

200/1000 = 1/5