2017 Gauss 8 Problem 18

Brodie and Ryan are driving directly towards each other. Brodie is driving at a constant speed of 50 km/h. Ryan is driving at a constant speed of 40 km/h. If they are 120 km apart, how long will it take before they meet?

\textbf{(A)}\ 1 \text{ h } 12 \text{ min}\quad \textbf{(B)}\ 1 \text{ h } 25 \text{ min}\quad \textbf{(C)}\ 1 \text{ h } 15 \text{ min}\quad \textbf{(D)}\ 1 \text{ h } 33 \text{ min}\quad \textbf{(E)}\ 1 \text{ h } 20 \text{ min}

If there are no answer choices shown, enter a numerical answer.

Full credit to this problem is given to the CEMC, you may view all Gauss contests here.