A car cover first half of the distance with 60kmph and
second half of the distance with 40kmph what is the average
speed?
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Answer Posted / khushboo gambhir
using concept f harmonic mean,which is used to calculate
most of the questions regarding average speeds for different
or the same portion of distance covered with different speeds.
we get average speed=2x/((x/60)+(x/40))
we get answer,48.
statistics student must have done this prob in oral.
| Is This Answer Correct ? | 51 Yes | 11 No |
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