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A car mares with a speed of 30 km/h
for half an hour, 25 km in fer one
new and 40 Rm 1n for two hours
calculate average speed of care
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Answer:
✯♦given that , speed of car 30km/h for half an hour , 25 km for 1hour and 40km/h for 2hour.
▶so for calculate the average speed of car we can use the formula
♦ Distance = Speed*Time
so, in 1st Case = 30*1/2 = 15km
2nd Case = 25*1 = 25km
3rd case = 40*2 = 80km
Total Distance Travelled = 15+25+80 = 120km
Total Time = 1/2+1+2 = 7/2
▶Average Speed = 120/ 7/2 = 120*2/7 = 240/7 km/h
♦Or 34.28 km/h
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