A) 0.5 km/h
B) 1 km/h
C) 1.5 km/h
D) 2 km/h
Correct Answer: B
Solution :
Let speed of the How of water be v to/h and rate of sailing of sailer be u tan/h. Then, \[u+v=\frac{48}{8}\] \[\Rightarrow \] \[u+v=6\] ...(i) and \[u-v=\frac{48}{12}\] \[\Rightarrow \] \[u-v=4\] ...(ii) On solving Eqs. (i) and (ii), we get \[v=1\,\,km/h\]You need to login to perform this action.
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