Question

In a school, there is 7 period a day each of 45 minutes duration. How long each period is, if the school has 9 periods a day assuming the number of hours to be the same?
$\left[2\right]$

Answer 1

Assuming number of hours to be the same,
Number of hours to take 7 periods = Number of hours to take 9 periods
$\left[1\right]$
7$\times$45 = 9$\times$Length of each period
Required length of each period = $\frac{7\times 45}{9}$ = 35 minutes
$\left[1\right]$