Kelly makes 12 candles in 3 hours. Lee makes 6 candles in 1 hour. What is the difference in the numbers of candles they each make in 8 hours?

Kelly makes 4 candles per hour (12/3=4). Lee makes 6 candles per hour (6/1=1). In 8 hours, Kelly makes 32 candles (4*8=32). In 8 hours, Lee makes 48 candles (6*8=48). The difference in the numbers of candles is 16 (48-32=16).