Question

After every ninth visit to a restaurant you receive a free beverage. After every twelfth visit you receive a free appetizer. If you visit the restaurant 100 times , on which visit will you receive a free beverage and a free appetizer? At which visit will you first receive a free beverage and a free appetizer?
(HINT): this problem is about LCM.

Answer 1

At the 72 visit they will get a free beverage and a free appetizer.