A) \[\frac{17}{30}\]hours
B) \[1\frac{17}{13}\] hours
C) \[1\frac{13}{17}\] hours
D) 2 hours
Correct Answer: C
Solution :
Speed of Shyam in still water\[=\text{ }20\text{ }km./hr\]. Upstream speed \[=20-3=17\text{ }km./hr\] \[\therefore \] Time taken by Shyam to swim \[30\text{ }km\] \[=\,\,\,\,\,\,\frac{Distance}{Speed}=\frac{30}{17}=\underline{\mathbf{1}\frac{\mathbf{13}}{\mathbf{17}}\,\mathbf{Hours}}\]You need to login to perform this action.
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