Sushma can paint the classroom walls of a primary school in 70 days, and Kamla can do it in 105 days. If they work together, how many days will it take?

Question

Accepted Answer

42. Combined rate = 1/70 + 1/105 = 3/210 + 2/210 = 5/210 = 1/42 per day; time = 42 days.

Sushma can paint the classroom walls of a primary school in 70 days, and Kamla can do it in 105 days. If they work together, how many days will it take?

Step-by-Step Solution

Master this topic in 30 minutes a day.

More Time & Work / Pipes practice