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16 October, 20:54

If it takes 4 men 6 hours to repair a road, How long will it take 3 men to do the job if they work at the same rate?

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  1. 16 October, 22:58
    0
    Hours = 6 hours = x hours

    man 4 men 3 men

    Cross-division shows us that it's 4x = 6*3 = 18

    x = 18 = 9 or 4.5 hours

    4 2
  2. 16 October, 23:44
    0
    If 4 men = 6hrs

    then 3 men = ?

    multiply 3x6 then divide the result by 4

    3x6=18 18/4 = 4.5 hours
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