A tank is normally filled in 16 hours. Because of a leak at it's bottom it takes 4 hours more to fill. How much time (in hours) will the leak take to empty the tank when it is full?
A)54
B)72
C)60
D)80
Answers
Answered by
0
Answer:
not sure
60.
is it
but if it will not right that I am sorry
Answered by
0
Answer:
D) 80
Step-by-step explanation:
Let the capacity of the tank be 80 Litres.
Given : It can be filled in 16 hours without leak.
Rate at which it fills without leakage = (80/16) = 5 Litres/hour.
Given : Due to leakage it takes 4 more hours to fill.
So, with leakage it takes (16+4 = 20 hours)
Rate at which it fills with leakage= (80/20) = 4 Litres/hour
The rate has reduced from 5 Litres/hr to 4 Litres/hr due to Leakage, which also implies that the rate at which the leakage happens is 1 Litre/hour.
With this rate it takes 80 hours to empty a full tank.
Hope this helps :)
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