1.
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Three
pipes A, B and C can fill a tank from empty to full in 30 minutes, 20
minutes, and 10 minutes respectively. When the tank is empty, all the three
pipes are opened. A, B and C discharge chemical solutions P,Q and R
respectively. What is the proportion of the solution R in the liquid in the
tank after 3 minutes?
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2. A can do a work in 10 days and
B can do it in 30 days and C in 60 days. If the total wages for the work is Rs. 1800 what is the share of A?
A.Rs. 1500
B.Rs. 1200
C.Rs. 2000 D.Rs.1800
3.
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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 pipes are opened together, then the tank will be
filled in:
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View Answer With Explanation
4. A cistern can be filled by
pipe A and B in 12 minutes and 10 minutes respectively. The full tank can be emptied
by a third pipe C in 8 minutes only. If all the taps be turned on at the same
time, the cistern will be full in how much time?
A.15 1/5 Min B.20 2/5 Min
C.17 1/7 Min D.Cannot be
Determined
5.
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Three
pipes A, B and C can fill a tank in 6 hours. After working at it together for
2 hours, C is closed and A and B can fill the remaining part in 7 hours. The
number of hours taken by C alone to fill the tank is:
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6. A pipe can fill a tank in 5
hrs but because of a leak a the bottom it takes 1 hr extra. In what time can the
leak alone empty the tank?
A.15 hrs B.25 hrs
C.30 hrs D.50 hrs
7. If A and B can do a work in 10
days , B and C can do it in 20 days and C and A can do it in 40 days in what
time all the three can do it?
A.50/7 B.80/7
C.8/7 D.15/7
8.
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A
pump can fill a tank with water in 2 hours. Because of a leak, it took 2 hours
to fill the tank. The leak can drain all the water of the tank in:
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A.
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B.
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7 hours
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C.
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8 hours
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D.
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14 hours
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9.
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A
tap can fill a tank in 6 hours. After half the tank is filled, three more
similar taps are opened. What is the total time taken to fill the tank
completely?
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A.
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3 hrs 15 min
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B.
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3 hrs 45 min
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C.
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4 hrs
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D.
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4 hrs 15 min
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10. If A can do a work in 12 days, B can do it in 18 days and C in
24 days. All the three started the work. A left after two days and C left three days before the
completion of the work. How many days are required to complete the work?
A.69/5 B.69/7
C.65/5 D.60/7
