Question

It takes 16 minutes for 9 people to paint 8 walls. How many minutes for 4 people to paint 6 walls

Answer 1

12 minutes will take by 4 people to paint 6 wall.

Answer 2

wall painted = painter rate × time

painter rate = 8 walls painted / 9 painters / 16 minutes

painter rate = 8/144 walls painted per painter minute

let x = painter minutes

6 walls painted = (8/144 walls painted per minute) × x

solve for x

x= 108 painter minutes(to complete 6 walls)

108 painter minutes/4 painters = 27 minutes to complete the painting of 4 walls

27 minutes is the answer