CAYLEY 2013 Problem 15

The graph shows styles of music on a playlist. Country music songs are added to the playlist so that 40\% of the songs are now 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?

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Answer Choices
A. 7
B. 15
C. 21
D. 35
E. 39