Question

It takes 48 minutes for 7 people to paint 7 walls. How many minutes does it take 20 people to paint 20 walls?

Answer 1

137 minutes.

2 hrs and 17 minutes

Explanation:

The painting of each wall takes 6.85 minutes.

48 / 7 = 6.85.

therefore if there are 20 walls, it must take 20 people 2 hrs and 17 mins

20 x 6.85 = 137minutes.

Answer 2

Answer: 48 minutes

Explanation:

If there are 7 people painting 7 walls, we can assume that 1 person is painting 1 wall. Altogether they can each paint in 48 minutes.

If there are 20 people painting 20 walls, it would also equal 48 minutes because each person can paint in that time.