Question

The width of a rectangular room is 80%

of
its length. The length of the room is 15 feet.
What is the width of the room?

Answer 1

Formula of rectangle :-

l ×b

80/100 × 15 ×b

8/10 × 15 ×b

80/100 × 15 =b

8/10 ×15 =b

4/5 × 15 =b

4 × 3 = b

b = 12feet

b = 12 feet

Answer 2

12 feet

Explanation:

Given: length = 15 feet, width = L x 80%

Unknown: width = ?

width = L x 80%

w = (15ft) x 80% or (15ft) x .80

w = 12 ft