Can some 1 help me with this q​

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

If 25% of y is 30, what is 60% of y?