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A cistern has two inlets A and B which c...

A cistern has two inlets A and B which can fill it in 12 minutes and 15 minutes respectively. An outlet C can empty the full cistern in 10 minutes. If all the three pipes are opened together in the empty tank, how much time will they take to fill the tank completely?

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20 minutes
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A cistern has two inlets A and B which can fill it in 12 hours and 15 hours respectively.An outlet can empty the full cistern in 10 hours.If all the three pipes are opened together in the empty cistern,how much time will they take to fill the cistern completely?

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RS AGGARWAL-TIME AND WORK -EXERCISE 13A
  1. Rajan can do a piece of work in 24 days while Amit can do it in 30 day...

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  2. Ravi can do a piece of work in 15 hours while Raman can do it in 12 ho...

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  3. A and B working together can finish a piece of work in 6 days, while A...

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  4. Two motor mechanics, Taju and Siraj, working together can overhaul a s...

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  5. A, B and C can do a piece of work in 10 days, 12 days and 15 days resp...

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  6. A can do a piece of work in 24 hours while B alone can do it in 16 hou...

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  7. A ,\ B\ a n d\ C working together can do a piece of work in 8 hours. A...

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  8. A and B can finish a piece of work in 16 days and 12 days respectively...

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  9. A can do a piece of work in 14 days while B can do it in 21 days. They...

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  10. A can do (2)/(3) of a certain work in 16 days and B can do (1)/(4) of ...

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  11. A, B and C can do a piece of work in 15, 12 and 20 days respectively. ...

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  12. A and B can do a piece of work in 18 days .B and C in 24 days and A an...

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  13. A and B can do a piece of work in 12 days, B and C in 15 days respecti...

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  14. Pipes A and B can fill an empty tank in 10 hours and 15 hours respecti...

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  15. Pipe A can fill an empty tank in 5 hours while pipe B can empty the fu...

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  16. Three taps A, B and C can fill an overhead tank in 6 hours, 8 hours an...

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  17. A cistern has two inlets A and B which can fill it in 12 minutes and 1...

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  18. A pipe can fill a cistern in 9 hours. Due to a leak in its bottom, the...

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  19. Pipe A can fill an empty tank in 6 hours and pipe B in 8 hours. If bot...

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