Confusion in question

Bad performing students have to pay additional amount equivalent to Y coupons. So, if Y=5, then how will we know that whether 1 student has paid for 5 coupons, or one student paid for 3 coupons and other student paid for 2 coupons or any other configuration.

@Syed-Siddiqui-2497215583854102

some students who perform badly in the admission tests, need to pay additional amount equivalent to Y discount coupons

each student performing bad will give y coupons amt individually