A car runs between two stations A and B . from A to B , it goes with a speed of 30 km/h and from B to A it returns to 40km/h .the average speed of the car between A and B. ? plz plz answerfast its very urgent...
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Let the distance from A to B be = X km.
Time duration for travel from A to B = X/30 hours
Time duration for travel from B to A = X/40 hours
Total duration = 7 X/120 hours
total distance = 2 X
Average speed = 2 X / [ 7 X/120 ] = 240 / 7 kmph
Time duration for travel from A to B = X/30 hours
Time duration for travel from B to A = X/40 hours
Total duration = 7 X/120 hours
total distance = 2 X
Average speed = 2 X / [ 7 X/120 ] = 240 / 7 kmph
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Answer:
34.2
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