Question

Sam and Carlos are bowling with plastic pins in Sam's living room.

Remarkably, Sam knocks down 8 pins on every bowl, and Carlos knocks down 9 pins on every bowl. At the end of the day, Sam and Carlos have knocked down the same total number of pins.

What is the least number of total pins that Sam and Carlos could have each knocked down?

Answer 1

72 because that’s the least common multiple.