A school has 8 periods a day each of 45 minutes duration , How long would each period be if the school has 10 periods a day , assuming the number of school hours to be the same ?
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8 ×45 =10 ×y
y =8×45/10
y=360/10
y=36mins
y =8×45/10
y=360/10
y=36mins
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