At a construction site, Raju can paint a wall in 36 hours, while Angad can do the same work in 18 hours. Sumit can paint the same wall in 24 hours. In how much time can they paint the wall if they all work together?

8 hours

Raju = 36 hours, Angad = 18 hours, Sumit = 24 hours,

⇒ Time required to paint the wall together = \(\frac{72}{2 + 4 + 3}\) = \(\frac{72}{9}\) = 8 hours.