A Cistern Can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours . If both the taps are opened simultaneously , then after how much time will the cistern get filled? Options: A . &nbsp7 hr. B . &nbsp7.2 hr. C . &nbsp7.4 hr. D . &nbsp7.6 hr.

A Cistern Can be filled by a tap in 4 hours while it can be emptied by anothe

Question

A Cistern Can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours . If both the taps are opened simultaneously , then after how much time will the cistern get filled?

Options:

A . 7 hr.

B . 7.2 hr.

C . 7.4 hr.

D . 7.6 hr.

Answer: Option B

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Question 1. A water tank is two –fifth full . Pipe A can fill a tank in 10 minutes and pipe B can empty it in 6 minutes . I....it take to empty or fill the tank completely ?

Question 2. Pipe A can fill a tank in 5 hours , Pipe B in 10 hours and pipe C in 30 hours. If all the pip....open, in how many hours will the tank be filled?

Question 3. Pipes A and B can fill a tank in 5 and 6 hours respectively . Pipe C can empty it in 12 hours . If all the three pipe....how many hours the tank will be filled ?

Question 4. A pump can fill a tank with water in 2 hours . Because of a leak , it took \(2\frac{1}{3}\) hours to fill the t....leak can drain all the water of the tank .

Question 5. Two pipes A and B together can fill a cistern in 4 hours. Had the been opened separately , then B would have taken 6 ....taken by A to fill the cistern separately ?

Question 6. One pipe can fill a tank three times as fast as another pipe . If together the two pipes can fill the tank in 3....pipe alone will be able to fill the tank .

Question 7. A tank is filled in 5 hours by three pipes A ,B and C . The pipe C is twice as fast as B and B is twice as fast as A ....will pipe A alone take to fill the tank ?

Question 8. Two pipe s A and B can fill a tank in 10 minutes and 15 minutes respectively . If both the tape are opened simulta....take to fill the tank by tape B ?

Question 9. Two pipe s A and B can fill a tank in 10 hours and 20 hours respectively . While a third pipe C ....how much time , will the tank be full ?

Question 10. Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes, and 10 minutes respectively. When t....R in the liquid in the tank after 3 minutes?

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