A) \[5\frac{1}{7}\]hours
B) \[6\frac{1}{7}\] hours
C) \[8\frac{1}{7}\]hours
D) \[10\frac{1}{7}\]hours
Correct Answer: A
Solution :
(a): As per illustration in Q-2, Time to fill = \[\frac{1}{\frac{1}{6}+\frac{1}{9}-\frac{1}{12}}\] \[\frac{1}{\frac{6+4-2}{36}}=\frac{36}{7}=5\frac{1}{7}\] hrsYou need to login to perform this action.
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