Q:

If it takes 63 minutes for 4 people to paint 9 walls, how many minutes does it take for 7 people to paint 4 walls ?

Accepted Solution

A:
Answer:49 minutesStep-by-step explanation:knowing that the more people, the lower the time (divide), and the more walls, the more time (multiply)1. find how long it takes 1 person to paint 1 wall:63 minutes/9 walls = 7 minutes/wall with 4 people7 minutes * 4 people = 28 minutes/wall with 1 person2. Find for 7 people and 4 walls: 28 minutes * 7 people/4 walls = 196/4 =49 minutes