16. Five mark exercise problems - I

The cost of a chocolate is $Rs$. $(x + y)$ and Amir bought $(x + y)$ chocolates. Find the total amount paid by him in terms of $x$ and $y$. If $x = 10$, $y = 5$, find the amount paid by him.

 

Answer:

 

The total amount paid by Amir in terms of $x$ and $y$ is

 

If $x = 10$, $y = 5$, then the amount paid by him $=$ $Rs$.