Level 3
A 1-month pass to all art galleries for one person costs $280. The management gives a concession to a group of 56 tourists. For every 8 tourists who purchase the 1 month pass, the 9th tourist gets free access to the art galleries. How much does each tourist pay in this arrangement if they share the total cost equally?
Level 3
The usual price of a notebook sold at Shop A and B is $20. During a sale, a discount of 20% is given to every notebook sold at Shop A. At Shop B, a discount of 50% is given to the 3rd notebook for every 3 notebooks sold. How much cheaper would it be if Lily buys 8 notebooks from Shop A instead of Shop B?