A car cover 3 km in 4 equal parts of 10 km/h, 20 km/h, 30 km/h and 60 km/h. find the average speed
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Answered by
0
= (20km/h+30km/h+60km/h+10km/h)/4
120km/h/4
= 30kmph
Hope it helps you friend.
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Answered by
3
Lest assume total Distance 180km
1/3 with speed of 20 => 60 km in 3 hours
2/3 with speed of 60 => 120 km in 2 hours
total time taken = 5 hours
avg speed = 180/5 = 36 km/hour
1/3 with speed of 20 => 60 km in 3 hours
2/3 with speed of 60 => 120 km in 2 hours
total time taken = 5 hours
avg speed = 180/5 = 36 km/hour
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