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Q:

A boat running upstream takes 7 hours and 40 minutes to cover a certain distance while it takes 5 hours to cover the same distance downstream. What is the ratio between the speed of the current and speed of the boat respectively? 

  • 1
    13: 4
  • 2
    17: 4
  • 3
    19: 4
  • 4
    4: 19
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Answer : 4. "4: 19 "

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