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      Question

      A man cycles to the market at a speed of 12 km/h and

      returns at 16 km/h. If the total time taken for the entire journey is 1 hour and 5 minutes, what is the distance between his house and the market?
      A 4.66 km Correct Answer Incorrect Answer
      B 10 km Correct Answer Incorrect Answer
      C 8 km Correct Answer Incorrect Answer
      D 7.43 km Correct Answer Incorrect Answer

      Solution


      Let the distance between his house and the market be β€˜d’ km.

      ATQ,

      (d/12) + (d/16) = (65/60)

      Or, (4d/48) + (3d/48) = (13/12)

      Or, (7d/48) = (13/12)

      So, d = (13 Γ— 48) / (7 Γ— 12) = 624 / 84 = 7.43

      So, the distance between his house and the market = d = 7.43 km

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