A) 2 km
B) 1.5 km
C) 10.5 km
D) 1.25 km
Correct Answer: C
Solution :
Ans. Let the distance be x km. According to the question, \[\frac{x}{6}-\frac{9}{60}=\frac{x}{7}+\frac{6}{60}\] \[\frac{x}{6}-\frac{x}{7}=\frac{6}{60}+\frac{9}{60}\] \[\Rightarrow \] \[\frac{x}{42}=\frac{1}{4}\] \[\therefore \] \[x=\frac{42}{4}=10.5\,\text{km}\]You need to login to perform this action.
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