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In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is:
Answer & Solution
Correct Answer:
Option
A
$$\eqalign{
& {\text{Let}}\,{\text{Abhay's}}\,{\text{speed}}\,{\text{be}}\,{\text{x}}\,{\text{km/hr}} \cr
& {\text{Then}},\,\frac{{30}}{x} - \frac{{30}}{{2x}} = 3 \cr
& \Rightarrow 6x = 30 \cr
& \Rightarrow x = 5\,{\text{km/hr}} \cr} $$
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