Question of the day 29th December 2015....

In a musical programme at Ravindra Bharathi 10% of the audience left the hall after the first song, 20% of the remaining left after second song, 25% of the remaining went out after third song. Now after the 10 minute intermission 36 people came back after having snacksall remainded till fifth song which was the last long and the final number in the hall found to be 360. What was the initial number or audience in the hall?

A. 400B. 500C. 600D. 700E. 800