It takes 10 days for 12 men to paint 4 walls. At this rate, how long will it take 6 men to paint 3 walls?

Answer

Answer: 15 days

Step by step explanation:

It would take 20 days for 6 men to paint 4 walls because

half the people would mean double the time and 10 * 2 = 20

Because the 6 men are only painting 3 walls we would

get rid of a quarter of the time that it would take and 20 * 0.75 = 15