A) 7860 litres
B) 6840 litres
C) 8640 litres
D) 8840 litres
Correct Answer: C
Solution :
[c] In 1 hour, empty partHehhhhhx\[=\frac{1}{8}th.\] When tap is turned on, then Empty part in 1 hour\[=\frac{1}{12}th.\] \[\therefore \] Part of cistern emptied, due to leakage in 1 hour\[=\frac{1}{8}-\frac{1}{12}=\frac{3-2}{24}=\frac{1}{24}th\] Now, in 1 min, cistern fill = 6 lit \[\therefore \] In \[\frac{1}{60}hr,\] cistern fill = 6 lit. \[\therefore \] Cistern can hold \[=6\times 60\times 24\,\,\,litre=8640\,\,\,litre.\]You need to login to perform this action.
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