2013 Pascal Problem 17

The graph shows styles of music on a playlist. Country music songs are added to the playlist so that now 40\% of the songs are Country. If the ratio of Hip Hop songs to Pop songs remains the same, what percentage of the total number of songs are now Hip Hop?

\textbf{(A)}\ 7\quad \textbf{(B)}\ 15\quad \textbf{(C)}\ 21\quad \textbf{(D)}\ 35\quad \textbf{(E)}\ 39

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 Pascal contests here.