Twenty-euro 55331

Ivan went to the cinema with his friends. He bought five tickets for 57 cents, two popcorn for 66 cents, and 6 Coca-Cola for 1 euro and 9 cents. He paid with a twenty-euro bill. How many cents does he have left?

Correct answer:

x =  929 c

Step-by-step explanation:

$$\begin{gathered} n=5\cdot 57+2\cdot 66+6\cdot 109=1071\text{c} \\ x=20\cdot 100-n=20\cdot 100-1071=929\text{c} \end{gathered}$$

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