A) \[20\,m{{s}^{-1}}\]
B) \[25\,m{{s}^{-1}}\]
C) \[60\,m{{s}^{-1}}\]
D) \[30\,m{{s}^{-1}}\]
Correct Answer: D
Solution :
Speed to cover 1200 m by scootarist \[{{V}_{r}}\times 60=1200\Rightarrow {{v}_{r}}=20\] Speed to overtake bus \[v={{v}_{r}}+10=30\text{ m/s}\]
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