7 chocolates are more expensive than 8 packs of cookies. What is more expensive - 8 chocolates or 9 packs of cookies?

#
Think about what is more expensive: $7 \cdot 8$ chocolate bars or $8 \cdot 8$ packs of cookies.

## Solution

7 chocolate bars are more expensive than 8 packs of cookies. Therefore, 56 chocolate bars cost more than 64 packs of cookies and even more than 63 packs of cookies. Hence,

8 chocolate bars cost more than 9 packs of cookies.

## Answer

8 chocolate bars.