In the diagram of
△△NRQ below, SP∥∥RQ, NS=10, SR=50, and PQ=40. What is the length of NQ?
![In the diagram of NRQ below SPRQ NS10 SR50 and PQ40 What is the length of NQ class=](https://us-static.z-dn.net/files/dcd/090c7d458b805d40e6c67c7e0188f4bb.png)