- A6 minutes
- B6 2/15 minutes
- C7 minutes
- D5 1/3 minutes
Step-by-Step Solution
In hundredths: 10 + 5 + 4 = 19 a minute; 2 min: 38. Left 62 at 15: . Total .
Answer: B) 6 2/15 minutes
Pipes A, B and C fill a tank in 10, 20 and 25 minutes. All are opened; after 2 minutes C is closed. How long does filling take in all?
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 contractor employs 100 men to build a hall in 50 days. After 30 days, 3/5 of it is…A (12 days) starts a job; B (18 days) joins after 3 days and C (36 days) after a further…A (6 days) and B (9 days) work on alternate days, B first. How many days does the job…A (10 days) and B (15 days) start a job; after 2 days C (20 days) joins; after 2 more…An inlet fills a tank in 3 hours and an outlet empties it in 4. They are opened…