Question

A girl moves with a speed of 6 km/h for 2 hours and with a speed of 4km/h for the next 3 hours find average speed

Answer 1

Hey friend ,

Here is your answer,

In first case:
Speed=6km/hr
Time=2hrs
So,Distance travelled =6km*2=12km

In Second case :
Speed=4km/h
time=3hrs
Distance travelled =4km*3=12km

Total Distance=12km+12km=24km

Total Time=3hrs+2hrs=5hrs

Average speed=Total Diatance/Total Time=24/5km/hr

Hope This  Helps You
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