Given that a lemur sleep = 16hours
Let L represent Lemur
Let S represent Sloth
[tex]\begin{gathered} L\text{ sleeps }\longrightarrow\text{ 16hrs} \\ S\text{ sleeps}\longrightarrow\text{ 16+4 = 20 hours} \end{gathered}[/tex]The total hours of sleep for 2 days is equivalent to each day sleep multiply by 2
[tex]\begin{gathered} 2(L+S)=2(16+20) \\ =2(36)=72\text{hours} \end{gathered}[/tex]Therefore the total hours of sleep a lemur and a sloth get a during two days = 72 hours
