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?

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 nuber of school hours to be the same?

A school has 9 periods a day each of 40 minutes duration. How long would each period be, if the school has 8 perods 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 perlod become, if the school has 6 periods a day? (assuming the num ber of school hours to be the same).

The number of elements in each long period is :

In a school, the duration of a period in junior section is 45 minutes and senior section is 1 hour. If the first bell for each section rings at 10:00 a.m., when do the two bells ring together again?

One day a boy walked from his house to his school at the speed of 4 km/hr and he reached ten minutes late to the school. Next day, he ran at the speed of 8 km/hr and was 5 minutes early to the school. Find the distance between his house and school.