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27 August, 09:31

Working alone, it would take Shandra 45 minutes to mow the lawn. To mow the same lawn, also working alone, it would take Kelly 1 hour and 15 minutes. If they work together, the girls believe it will take them 1 hour to mow the lawn. Which best describes the reasonableness of their solution?

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  1. 27 August, 12:29
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    No! It would take them two hours. Seventy-five (an hour and fifteen minutes) plus sixty minutes would equals one thirty-five. Which is two hours.
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Home » Mathematics » Working alone, it would take Shandra 45 minutes to mow the lawn. To mow the same lawn, also working alone, it would take Kelly 1 hour and 15 minutes. If they work together, the girls believe it will take them 1 hour to mow the lawn.
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