EMTW Q.1

0. Two men, A and B, run a 4 km race on a circular course of 1/4 km. If their speeds are in the ratio of 5:4, how often doe's the winner pass the other?

  • Option : C
  • Explanation : When A runs 5 rounds, B runs 4 rounds (ratio of speeds)
    A passes B each time A has run 5 rounds or 5 x 1/4 = 5/4km. = 1 1/4km
    1 1/4km is contained in 4 km 3 times. Hence A passes B thrice.
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