Question

A blue candle is twice as long as a red candle. The blue candle takes 6 hours to burn out and the red candle takes 15. After 5 hours, what fractional part of each candle is left? The blue candle’s length is what fraction of the red candle’s length? Explain how you got your answer.

Answer 1

The blue candle will be 5/6 of the way burned, the red candle will be 1/3 of the way burned. This is because it has been five hours, and therefore because the total of the red candle is fifteen, and five divided by fifteen is one third