A school has 8 periods a day each of 45 minutes duration.How long would each periods be if the school has 9 periods a day assuming the number of school hours to be the same?
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Solution. Let the duration of each period, when there are 9 periods a day in the school, be x minutes. The following table is obtained. Hence, in this case, the duration of each period will be 40 minutes.
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the duration of period is 40minutes.
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