Question

A school had 9 periods a day each of 40
minutes duration. How long would each
period be, if the school has 8 periods a day,
assuming that the school hours remain the
same?​

Answer 1

Let x minutes be the duration of period when the school has 9 periods a day. Then

Number of periods 8 9

Duration of periods (in minutes) 45 x

Clearly, more the periods, less will be the duration of the period.

So, it is a case of inverse proportion.

∴8×45=9×x

⇒x=

9

8×45

​

=40

Hence, the duration of period is 40 minutes.

Answer 2

I hope this is helpful to you..........

Please make me as brainliest.........

Please follow me...........