Question

Kaycie has just bought a new candle. It is 20cm tall the box says that the candle burns 1.5cm per hour that it is lit. How long will it take the candle to burn all the way down?

Answer 1

since it is 20 cm and burns 1.5 cm every hour we just divide 20/1.5=13.333333....

Answer 2

It should probably take around 13 hrs. and 20 mins... 
(hope it helps ^_^)