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7 February, 14:26

Estimate how long it would take one person to mow a football field using an ordinary home lawn mower. state your assumptions, such as the mower moves with a 1 km/hr speed, and has a 0.5 m width.

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  1. 7 February, 17:31
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    Ans: 8 hours and 90 minutes

    The length of Football field = 300ft by 160 ft.

    On converting it into meter, we get length of field = 91.44 m

    and the width of field = 48.8 m

    Now, distance = Area moved / width = (91.44*48.8) / 0.5 = 8924.55 m = 8.9245 km

    Ans, Time taken = distance*speed = 8.9245*1 km/hr = 8 hours and 90 minutes
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