A 25 story building has 4 apartments on each floor. If each apartment houses two people, how many people does the building house?
If each building floor has 4 apartments, we have 25 floors * 4 apartments/floor = <T>multiply(25, 4)=100 apartments.
If each apartment has 2 people, 100 apartments * 2 people/apartment = <T>multiply(100, 2)=200 people.
