Le Matou matheux: percentages

Every day life

What is the new mass of this packet?

An item cost 150 € before the sales.

How much does it cost now ?

€

Mr Johns puts 1 430 € on his bank book
at 2.5 % annual interests.
Calculate the new capital at the end of a year.

€

Here is a batch of two packets weighing 24 g each before the discount.

What is the mass corresponding to the discount?

Here is a batch of two packets weighing 300 g each before the discount.

What is the weigh of the free extra portion?