Winning cb scholarship

why are we adding( n-mid)*y into m. They are the students who performed bad and needs to pay for 100% scholarship. Does that mean the question asks to find the students who will get 100% after paying for extra coupons?

@sounakume https://youtu.be/TC6snf6KPdE
Refer this video from 22nd minute. All your doubts will be cleared.

I understood the problem. thank u.