Question

after every ninth visit going to a restaurant you receive a free beverage. After every twelfth visit you recieve a free appetizer. If you visit the restaurant 100 times on wich visits will you recieve a free beverage and a free appetizer? At wich visit will you first recieve a free beverage and a free appetizer?

Answer 1

out of the 100 times you visit: the 36 and 72 time you will receive a free beverage and a free appetizer

Answer 2

you will get free beverage and free appetier on visits 36 and 72