How many ping pong balls would it take to fill a classroom that measures 22 feet by 16 feet by 9 feet? (Assume that a ping pong ball has a diameter of 1.5 inches and that the balls are stacked directly on top of each other).
You could look at each dimension seperately: 1.) How often does 1.5 inches fit into 22 feet? 1.5 inches=0.125 feet (looked up the conversion) 22 feet/0.125 feet= 176 2.) How many balls fit into 16 feet? same thing :) 16 feet/0.125 feet=128 3.) How many balls fit into 9 feet? 9 feet/0.125 feet=72
Then you multiply them all out because there are 72 layers of 176x128 balls, right? 9*176*128=1622016 balls overall Hope that helped ;)
