- A10.5
- B25
- C12
- D9
Step-by-Step Solution
Combined rate = 1/15 + 1/35 = 7/105 + 3/105 = 10/105 of the order per day, so 105/10 = 10.5 days.
Answer: A) 10.5
One tailor can stitch an order of school blazers in 15 days and a second tailor in 35 days. If both stitch together, in how many days will the order be ready?
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
A can do a piece of work in 20 days and B in 30 days. They work together for 6 days.…A is twice as efficient as B. A takes 10 days less than B to complete a work. In how…Manoj and Farah together paint the school boundary wall in 28 days; Manoj alone needs 44…A borewell pump fills a rooftop tank in 11 hours, but a cracked valve can drain the full…Filling an irrigation tank takes 27 hours with the canal inlet alone and 54 hours with…