- A30
- B49
- C91
- D35
Step-by-Step Solution
Manoj's rate = 1/21 − 1/70 = 10/210 − 3/210 = 7/210 = 1/30, so he needs 30 days.
Answer: A) 30
Lalit and Manoj together can tile a floor in 21 days. Lalit alone would take 70 days. How many days would Manoj need on his own?
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 is twice as efficient as B. Working together, they can complete a work in 14 days. In…A tap fills a bucket in 4.5 minutes, but a hole in the bucket would empty it in 6.3…Working together, Meena and Tarun pack a consignment in 18 days. Meena alone needs 30…A is twice as efficient as B. Working together, A and B can complete a piece of work in…A can complete a work in 20 days and B in 30 days. A works alone for the first 5 days,…