for every 45 points there is 30 points how much is one point
\(\begin{array}{|r|r|} \hline \text{points} & \text{points} \\ \hline 45 & 30 \\ 90 & 60 \\ 135 & 90 \\ \cdots & \cdots \\ x & x\cdot \frac{30}{45} \\ 1 & 1\cdot \frac{30}{45} \\ \hline \end{array} \)
