A girl moves with the speed of 6 km /h for 2 hours and with the speed of 4 km/h for next 3 hours. Find the average speed of the girl and the total distance moved ?
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Explanation:
Average speed = total distance/total time
distance= speed × time =6
D1 = 6km/hr×2h= 12km
D2 = 4km/hr ×3h=12km
vav = ( 12+12)km/(2+3)h
= 24/5= 4.8km/h
total distance= 2.4km
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