24. Five marks exercise problems XV

1. If the cost of a dozen soaps is $₹396$, what will be the cost of $35$ such soaps?

 

2. 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?

 

Duration of time period $=$ mins