Answer:
Hey I think the answer is 28 hours
5x + 13 + 3x + 7 = 180
8x +20 = 180
8x = 160
x = 20
Step-by-step explanation:
53
It is a trick question. 6 people to paint 6 walls will take 53. 20 people to paint 20 walls will take 53 minutes.