A) \[10\,\,\min \]
B) \[16\,\,\min \]
C) \[22\,\,\min \]
D) \[12\,\,\min \]
Correct Answer: D
Solution :
\[1\frac{1}{3}h=60\,\,\min +\frac{1}{3}\times 60\,\,\min \] \[=(60+20)\min =80\,\,\min \] \[15%\]of\[1\frac{1}{3}h=15%\]of\[80\,\,\min \] \[=\frac{15}{100}\times 80\,\,\min =12\,\,\min \]
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