Two persons starting from the same place walk at a rate of 6.25 kmph and 7.75 kmph, respectively. What time will they take to be 19.5 km apart, if they walk in the same direction ?
plz help me to do it
Answers
Answered by
1
Step-by-step explanation:
In this type of questions we need to get the relative speed between them,
The relative speed of the boys = 5.5kmph – 5kmph
= 0.5 kmph
Distance between them is 8.5 km
Time = Distance/Speed
Time= 8.5km / 0.5 kmph = 17 hrs
Similar questions