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The jogging track in a sports complex is 726 m in circumference. Deepak and his wife start from the same point and walk in opposite directi…

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The jogging track in a sports complex is 726 m in circumference. Deepak and his wife start from the same point and walk in opposite directions at 4.5 km/hr and 3.75 km/hr respectively. They will meet
  • A4.9 min
  • B5.28 min
  • C5.5 min
  • D6 min
Correct answer: B
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CCommunity
5.28 min

Clearly, the two will meet when they are 726 m apart.

To be (4.5 + 3.75) = 8.25 km apart, they take 1 hour.
To be 726 m apart, they take (100/825 * 726/1000) hrs = (242/2750 * 60) min = 5.28 min.