- A22.5
- B48
- C24
- D20
Step-by-Step Solution
Together they do 1/36 + 1/60 = 5/180 + 3/180 = 8/180 = 2/45 of the job per day, so 45/2 = 22.5 days.
Answer: A) 22.5
Two painters, Salim and Deepak, take 36 days and 60 days respectively to paint a school building on their own. Working together, how many days will they need?
Competition practiceTime & Work / Pipes
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Time & Work / Pipes practice questions
More Time & Work / Pipes practice
Gita can embroider a set of cushion covers in 45 days and her apprentice needs 180 days…A is twice as efficient as B, and together they complete a work in 8 days. In how many…Nikhil alone can paint a community hall in 24 days. He paints for 8 days and leaves, and…Pipe X fills a tank in 12 hours and pipe Y in 18 hours. Both are opened together, but Y…Harish can type a thesis in 36 hours and Leela can type it in 44 hours. If they split…