A movie buff buys movies on DVD and on Blu-ray in a ratio of 13:4. If she returns 2 Blu-ray movies, that ratio would change to 7:2. If she buys movies on no other medium, what was the original number of movies purchased?	Select the correct option
A) 22 B) 28 C) 77 D) 99 E) 119
Now coming to the process m(D) = 13x and b(D) = 4x   now from the next line the new eqn becomes 13x/ (4x -2) = 7/2   Solving it 26x = 28x -14   x =7   which means m (d) = 91 and b(d) = 28   SO total initially is m(d) + b(d) = 119   119
<result>E</result>
A movie buff buys movies on DVD and on Blu-ray in a ratio of 13:4. If she returns 2 Blu-ray movies, that ratio would change to 7:2. If she buys movies on no other medium, what was the original number of movies purchased?