- A18
- B24
- C16
- D20
Step-by-Step Solution
Let B's rate be ; A's is , so giving ; A's rate = 2/36 = 1/18, so A alone takes 18 days.
Answer: A) 18
A is twice as efficient as B. Working together they can finish a piece of work in 12 days. In how many days can A alone finish the work?
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 work in 15 days and B in 10 days. They work on alternate days, with A…6 women can complete a piece of work in 24 days, and 8 men can complete the same work in…A village pond is filled by two canals; one alone would take 14 hours and the other…A carpenter in Saharanpur can finish an order of wooden stools in 60 days, and his…Sushma can paint the classroom walls of a primary school in 70 days, and Kamla can do it…