Two persons starting from the same place walk at a rate of 8kmph and 15kmph respectively. What time will they take to be 14 km apart, if they walk in the same direction?
Choose one.
A) 7 hrs  B) 2 hrs  C) 5 hrs  D) 12 hrs  E) 6 hrs
The relative speed of the boys = 15kmph – 8kmph   = 7 kmph   Distance between them is 8.5 km   Time= 14km / 7 kmph =2 hrs   Answer : 2 hrs
<result>B</result>
Two persons starting from the same place walk at a rate of 8kmph and 15kmph respectively. What time will they take to be 14 km apart, if they walk in the same direction?