1. Two men starting from the same place walk at the rate of 5 km/h and 5.5 km/h respectively. What time will
they take to be 8.5 km apart, if they walk in the same direction?
A.16h
B. 8 h 30 min
C. 4h/5min
D. 17 h
Answers
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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
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