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Two pipes A and B can separately fill a cistern in 15 and 10  min, respectively, and a waste pipe C can carry off 7 L per min. If all the pipes are opened when the cistern is full, it is emptied in 2 h. How many litres does the cistern hold?

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Important Questions on Arithmetic

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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 28

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in:

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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 29
Two pipes A and B can separately fill a cistern in 10 min and 5 min, respectively, and a waste pipe C can carry off 12 L per min. If all the pipes are opened when the cistern is full, it is emptied in 1 h. What is the capacity of the cistern?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 30
Sanjay can do a work in 16 h and Bairam can do it in 24 h. Pranesh can do the same work in 32 h. If all of them work together. In how many hours can they complete the work together?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 31
One fill-pipe A is 10 times faster than the second fill-pipe B. IfB can fill a cistern in 55 min then find the time when the cistern will be full ifbo~h the fillpipes are opened together?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 32

A tank can be filled by one tap in 20 min and by another in 25 min. Both the taps are kept open for 5 min and then the second tap is turned off. In how many minutes more is the tank completely filled?

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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 33
Fifteen men take 21 days of 8 hours each to do a piece of work. How many days of 6 hours each would 21 women take if 3 women do as much work as 2 men?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 34
Three hundred workers are set to build a dam. In 21weeks, they have done 60% of the work, but subsequent rains lasting 4 weeks washed away 25% of what they had done. The job is resumed by 200 workers. What is the additional time it will take to complete the work?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 35
Tap A can fill a tank completely in, while tap B can empty it in 8 h. However, the operator forgot to close the tap B, and as a result, both the taps 4 h remained open. After , the person realized his mistake and immediately closed the tap B. How much more time would the tank take to get full now?