Two workers can paint a house in 7 hours. how much time will it take 3 workers to paint the same house?

We have  inverse proportion

 Inverse proportion occurs when one value increases and the other decreases.

More workers on a job would reduce the time to complete the task. They are inversely proportional.

2w 7h

3w xh

(+)                               (-)  ⇒ 2\3 = x\7 ⇒ x = 2·7/3=14/3 =12/3+2/3 =

= 4h + (2·60/3) min = 4h +40min

Hi i’m back in town now i’ll see ya soon bye