Question

cars travels for 1hr at speed of 40 km/h and for next hour at speed of 60 km/h . find average speed

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Answer 1

Answer:

50 km/h

Explanation:

Distance= Speed × Time

1st Case--

D= 40 × 1= 40 km

2nd Case--

D= 60 × 1= 60 km

Average speed= Total distance ÷ Total time

Average speed= 40+60÷1+1

                         = 100÷2

                         = 50 km/h

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