Walgreens Sales Associate Cashier interview questions

I came in and the assistant manger led me to a back room where I answered math and problem solving questions on a computer. After that i went over work experience questions with the manager. He told me I did very well but there two other candidates for one job and if I got a call back I'd be asked to do a drug screening and upon passing be offered a position. I didn't get a call back, however.

I showed up in business casual wear. The interviewer took me to a backroom and asked for my schedule. I received a drug test form. I took the drug test, and two days later I accepted the offer in-store.