PDF chapter test TRY NOW

Let us look at the image given below and answer the question that follows.
 
17 Ресурс 1.svg
 
Here, \(\frac{PO}{OR}\) \(=\) \(\frac{QO}{OS}\) is \(\frac{1}{3}\), and \(PQ\) measures 5 \(cm\).
 
\(SR\) \(=\)  \(cm\)