MAINS ARITHMETIC A tank has a leak which would empty i | Data Interpertation & airthmatic

MAINS ARITHMETIC


A tank has a leak which would empty it in 8 hours. A tap is turned on which admit 6 liters a minute into the tank and it now emptied in 12 hours. How many literes does the tank holds?

a)8260 ltr
b)8640 ltr
c)8560 ltr
d)8800 ltr
e)8720 ltr

Two pipes A and B can fill a cistern in 37 ½ minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if pipe B is turned off after

a)5 min
b)9 min
c)10 min
d)13 min
e)15 min

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?

a)6/11
b)5/11
c)7/11
d)8/11
e)9/11

A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. Time required by the first pipe to fill the tank is

a)30 hours
b)15 hours
c)10 hours
d)6 hours
e)5 hours

Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?

a)10 min 10 sec
b)25 min 20 sec
c)29 min 20 sec
d)20 min 10 sec
e)30 min 05 sec

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