In restaurant S, 70% of the total visitors use debit cards, and 30% pay by cash. Among the cash payers, 30% receive a 2% cashback. If the number of pe...
Question
In restaurant S, 70% of the total visitors use debit cards, and 30% pay by cash. Among the cash payers, 30% receive a 2% cashback. If the number of people using debit cards is 630, how many people get a 2% cashback on cash payments?