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William travels to school in two different ways. Either he walks to school and takes the bus home, or he takes the bus to school and walks home. In each case his total travelling time is 40 minutes. If he were to take the bus both ways, his total travelling time would be 20 minutes. How many minutes would it take if he walked both ways?

 May 14, 2020
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It  must take him  10 min to   travel one way on the  bus  since  it takes him 20 min in total when he goes by bus both ways

 

Therefore.....when he  walks and takes the bus  the time  he  walks 1/2 the total distance  must  be  40 - 10  = 30 min

 

Therefore....if he walked the  whole distance, it would take  him twice as long = 1  hour

 

cool cool cool

 May 14, 2020
edited by CPhill  May 14, 2020
edited by CPhill  May 14, 2020

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