A) 12 km
B) 14 km
C) 18 km
D) 10 km
E) None of these
Correct Answer: D
Solution :
Let the distance be \[x\] km. Time taken by the first runner \[=\frac{x}{10}\] hrs Time taken by the second runner \[=\frac{x}{12}\] hrs Now,\[\frac{x}{10}-\frac{x}{12}=\frac{10}{60}\] or,\[\frac{6x-5x}{60}=\frac{1}{6}\] or,\[\frac{x}{60}=\frac{1}{6}\] or,\[x=\frac{60}{6}=10\]kmYou need to login to perform this action.
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