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Question #1

A and B are two taps attach to a cistern. Tap A can fill the cistern in 35 mins but tap B can empty the tank in 55 mins. Since Aman has started both the taps unknowingly he realized his mistake after 35 minutes. Then he closes Tap B immediately. After this how much time it will take to fill the cistern completely?
A
40.4
40.4
B
35.33
35.33
C
30.5
30.5
D
22.32
22.32
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Question #2

A full tank is emptied in 30 hrs by a pipe R.  And 15 hrs and 10 hrs was time taken by two Pipe P and Q to fill the tank respectively. Now all three taps were opened by Ram unknowingly. Now after 2 hrs Sham realized Ram mistake and closed Pipe R. Now, due to this mistake by Ram how much more time the taps will take to fill the tank?
A
18
18
B
16
16
C
22
22
D
44
44
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Question #3

If Pipe P and Q are working together they can fill the tank in 8.4 hrs. If Pipe P works alone it can fill the tank at the rate of 150 liters per hr. Similarly, if Pipe Q is working alone it can fill the tank in 12 hrs. Now determine the capacity of the tank.
A
4200 litres
4200 litres
B
3750 litres
3750 litres
C
5000 litres
5000 litres
D
8000 litres
8000 litres
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Question #4

I have two inlet pipes in my tank. Pipe P is diametrically bigger than Q and can fill a tank alone in 22 hours while Pipe Q takes 11 hours longer than Pipe P to fill the tank. If I open both the inlet pipes together, how long will they take to fill the tank?
A
19/22 hours
19/22 hours
B
(12/11) hrs
(12/11) hrs
C
66/5 hrs
66/5 hrs
D
18 hours
18 hours
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Question #5

Pipe A takes 38 hours to fill a tank alone while Pipe B takes half the time taken by Pipe A to fill the same tank alone. The leakage C can empty the entire tank in 133 hours. How many hours will it take to fill the tank if Pipe A and B are opened together and leakage C is also allowed to empty the tank simultaneously?
A
14 hours
14 hours
B
19 hours
19 hours
C
28 hours
28 hours
D
95 hours
95 hours
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Question #6

Pipe P can fill a cement tank in 24 hours. However, there is a leakage at the bottom of the tank due to which the Pipe P takes 12 hrs longer and fills it in 36 hours. How long would this leakage take to empty the entire tank?
A
48 hours
48 hours
B
60 hours
60 hours
C
72 hours
72 hours
D
96 hours
96 hours
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Question #7

Tap B is 5 times slower than Tap A in filling the same tank. Also tap B takes 32 minutes more than Tap A to fill the same tank completely. How long will the tank take to get full, if both the taps are opened simultaneously?
A
5/32 mins
5/32 mins
B
32/5 mins
32/5 mins
C
32/3 mins
32/3 mins
D
20/3mins
20/3mins
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Question #8

There are two inlets and one outlet to a tank. Inlet A and B take 1.5 hours and 2 hours respectively to fill the tank. While outlet C can empty the entire tank in 30 minutes. The gardener decides to open Inlet A at 8 am when he arrives on duty and Inlet B one hour later. Outlet C is opened at 10 am. What will be the time by his watch when the tank will be entirely empty again?
A
11.50 pm
11.50 pm
B
11.23 pm
11.23 pm
C
12.12 pm
12.12 pm
D
12.13 pm
12.13 pm
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Question #9

Time taken by Pipe P to fill the tank is 7.5 hrs. Time taken by pipe Q to empty the tank is 15.5 hrs. Now if we open both the pipes simultaneously, how much part of the tank can be filled in 1 hr?
A
7/115.75 part
7/115.75 part
B
1/116 th part
1/116 th part
C
8/116.25 part
8/116.25 part
D
1/315 part
1/315 part
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Question #10

A tap having a diameter(d) can empty a tank in 84 min. How long another tap having diameter '2d' take to empty the same tank?
A
21
21
B
42
42
C
168
168
D
136
136
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