a car moves for half of time at 80 km/h and for rest of time at 40 km/h. total distance covered is 60 km.what is the average speed of the car?
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Answer:
Hey bro!
You just have to put the formula thats it
Answered by
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Answer:
step by step explanation:
→ let the time taken be 't' hours.
→ average speed= total distance covered/total time taken
→ distance covered with 80km/h speed.
→ 80 × t/2=d1
→ 40t=d1
→ distance covered with 40 km/h speed
→ 40 × t/2=D2
→ 20t=D2
→ average speed of car= (40t+ 20t)/t
→ 60km/h is the average speed.
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