A) 18 minutes
B) 14 minutes
C) 15 minutes
D) 30 minutes
Correct Answer: A
Solution :
[a] Work done by \[{{1}^{st}}\] tap in one minute\[=\frac{1}{30}\] Work done by \[{{2}^{nd}}\] tap in one minute \[=\frac{1}{45}\] Both tap one minute work \[=\frac{1}{30}+\frac{1}{45}\] \[=\frac{45+30}{1350}\] \[=\frac{75}{1350}=18\]You need to login to perform this action.
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