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27 April, 14:39

3) Jenny left school and traveled toward the ferry office at an average speed of 30 km/h. Paul left

three hours later and traveled in the opposite direction with an average speed of 30 km/h. Find

the number of hours Paul needs to travel before they are 150 km apart.

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Answers (1)
  1. 27 April, 17:03
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    By the 3rd hour, jenny must have covered 90kms

    Paul covered 30kms after Jenny's 3rd hour and jenny still covered 30kms making a total of 150kms in the opposite direction. Therefore Paul needs not to cover additional hour so the answer = 0hour
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