Two pipes can fill a cistern separately in 10 hours and 15 hours. They can together fill the cistern in
Two pipes can fill a cistern separately in 10 hours and 15 hours. They can together fill the cistern in 1). 6 hours 2). 7 hours 3). 8 hours 4). 9 hours
SSC CGL Books
1 answers
Answered by
Guest on
2018-01-20 03:54:42 | Votes
0 |
#
6 hours : option 1 is the correct answer
Join Telegram Group
Other Questions
1. A tap drips at a rate of one drop/ sec, 600 drops make 100ml. The number of litres wasted in 300 days is
2. A cistern is provided with two pipes A and B. A can fill it in 20 minutes and B can empty it in 30 minutes. If A and B be kept open alternately for one minute each, how soon will the cistern be filled
3. A pipe can fill a tank in x hours and another can empty it in, y hours. They can together fill it in (y > x)
4. An empty tank can be filled by pipe A in 4 hours and by pipe B in 6 hours. If the two pipes are opened for 1 hour each alternately with first opening pipe A, then the tank will be filled in
5. A pipe can fill a tank in 24 hrs. Due to a leakage in the bottom, it is filled in 36 hrs. If the tank is half full, how much time will the leak take to empty the tank
6. Which of these pipes will empty a pool the fastest (i) One pipe of diameter 60 cm (ii) Two pipes of diameter 30 cm each (iii) three pipes of diameter 20 cm each
7. A cistern can be filled with water by a pipe in 5 hours and it can be emptied by a second pipe in 4 hours. If both the pipes are opened when the cistern is full, the time in which it will be emptied is :
8. Two pipes can fill a tank in 15 hours and 20 hours respectively, while the third can empty it in 30 hours. If all the pipes are opened simultaneously , the empty tank will be filled in
9. A water tank can be filled by a tap in 30 minutes and another tap can fill it in 60 minutes. If both the taps are kept open for 5 minutes and then the first tap is closed , how long will it take for the tank to be full
10. Three pipes P, Q and R can separately fill a cistern in 4,8 and 12 hours respectively. Another pipe S can empty the completely filled cistern in 10 hours. Which of the following arrangements will fill the empty cistern in less time than others