My cat snoozes for $$50$$ minutes in each hour. For how many hours a day does my cat snooze?　 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Knowing the Base
Sleeping for $$50$$ minutes every hour through the day is $$\frac{5}{6}$$ of every hour and thus $$\frac{5}{6}$$ of the day. Of $$24$$ hours, $$\frac{5}{6}$$ is $$20$$ hours. 