Three pipes A B and C can fill a tank in 20 hours. After working at it together for 5 hours C is closed and A and B fill it in 30 hrs. C alone can fill it in
Correct answer B. 40 hrs
Tip: press A, B, C or D to answer, and N for the next question.
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More Time and Work questions
See allA and B can complete a task in 44 days when working together. After having worked together for 33 days B is called away. A completes the remaining task in the next 25 days. A can complete the job working alone in
Correct answer C. 100 days
A can do a piece of work in 10 days and B in 15 days. If they work for a day alternately A beginning the work will be completed in
Correct answer B. 12 days
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A can complete a piece of work in 16 days and B can complete it in 20 days. They start working together. Two days before the completion of the work A leaves. Work is completed in
Correct answer A. 10 days
A is twice as good a workman as B and takes 6 less days to complete a piece of work as B does. To finish the work alone B will take
Correct answer A. 12
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