pipes and cisterns in apptitude andresoning.pptx

Pipes and cisterns

1. PIPES & CISTERNS

2. Pipe A can fill a tank in 10 hours and pipe B can fill it in 15 hours . If both the pipes are open together , how much time to fill the tank ? 6 Hrs 2)8 hrs 3) 12 hrs 4) 9 hrs 5) 10 hrs Q.No:1

3. A tap can fill a cistern in 8 hrs and another can empty it in 16 hrs . If both the taps are opened simultaneously the time to fill the tank is ? 1) 8 hrs 2) 10 hrs 3)16 hrs 4)24 hrs 5) 15 hrs Q.No:2

4. Two pipes can fill a tank in 16 hrs and 12 hrs respectively . A third pipe can empty the tank in 24 hrs . If all the three pipes function simultaneously , in how much time the tank be full ? 1) 10 1/5 2) 9 3/5 3 ) 8 3/5 4 )9 1/5 5) 8 4/5 Q.No:3

5. A cistern is normally filled in 8 hrs but takes two hrs longer to fill beacause of a leak in its bottom . If the cistern is full , the leak will empty it in ? 1)16 hrs 2)20 hrs 3)25 hrs 4)40 hrs 5)45 hrs Q.No:4

6. Two pipes P & Q can fill a cistern in 12 and 15 min respectively . Both are opened together , but at the end of 3 min the first is turned off . How much longer will the cistern take to fill ? 1) 9 ¼ 2) 8 ¼ 3) 7 ¼ 4) 8 ½ 5)7 ½ Q.No:5

7. Two pipes X and Y can fill a cistern in 24 min and 32min . If both the pipes are opened together after how much time Y should be closed so that the tank is full in 18 min ? 1)8 min 2)6 min 3)10 min 4 ) 12 min 5) 15 min Q.No:6

8. A cistern has a leak which would empty it in 8 hours . a tap is turned on which admits 6 liters a min into the cistern and it is now emptied in 12 hrs . How many lit does the cistern hold ? 7580 lts 2) 7960 lts 3) 8290 lts 4) 8640 lts 5) 7620 lts Q.No:7

9. A tank has 2 inlets A and B which take 24 hrs to fill the tank when they are opened simultaneously and function together if A fills the tank twice as fast as B fills the tank , how much time will A alone take to fill the tank independently ? 1) 36 hrs 2 ) 36 1/12 hrs 3)28 4/9 hrs 4)42 hrs 5) 30 hrs Q.No:8

10. Three pipes A ,B and C can fill a cistern in 6 hrs . After working at it together for 2 hrs , C is closed and A and B can fill it in 7 hrs . The time taken by C alone to fill the cistern? 1) 10 hrs 2) 12 hrs 3 ) 14 hrs 4) 16 hrs 5 ) 20 hrs Q.No:9

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