A car is moving on a straight road covers one third of the distance with a speed of 20 km/h and the rest w
a speed of 60 km/h. The average speed of the car is
(1) 40 km/h
(2) 50 km/h
(3) 36 km/h
(4) 55 km/h​
Answers
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6
Answer:
(3) 36 kmph
Explanation:
Let total distance be 3x.
Time = Distance/Speed
Avg Speed = Total Distance travelled/ Total time taken
= (x + 2x) / (x/20 + 2x/60).
= 36 kmph
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