Q11. A school has periods a day each of minutes duration. How long would each period be, if the school has periods a day, assuming the number of school hours to be the same?

A school has 8 periods a day each of 45 minutes duration.How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same?

Q11. A school has $8$ periods a day each of $45$ minutes duration. How long would each period be, if the school has $9$ periods a day, assuming the number of school hours to be the same?

Answers (1)

D Divya Prakash Singh

Given :

A school has 8 periods a day each of 45 minutes duration.

So, if the school hours of school is fixed then there exists an inverse relationship between each period duration and the number of periods.

We can take the time of each period to be 't' if the school has 9 periods a day.

Hence we can write the relation as;

$8\times 45minutes = 9\times t\ minutes$ or $t = 40 minutes$ .