Question

Here are 67 people carpooling to a hockey game. They will ride together in cars that each hold 5 people.

What is the least number of cars they will need to take?

Answer 1

Answer: 14 cars

67 people / 5 people per car = 13.4 cars
Therefore, if each car has 5 people in it they will need to take at least 14 cars to fit everyone.

If the first 13 of those cars have 5 people (13x5=65 people in all 13 cars), so then another car is needed to fit the other two people (67-65=2) and the 14th car will only have 2 people. Therefore, the least number of cars they will need to take is 14.