## Task 5

For which numbers $x$ does the following inequality hold: $9<2 \cdot x<15$?

Check your answer!
$x=5,6,7$ because $9<10<15, 9<12<15, 9<14<15$.

### 11.25 26th Olympiad 1988

### 11.25.1 1st Round 1988, Class 2