## Task 4

$$
180 \mathrm{~s}=\ldots \mathrm{min} \quad 48 \mathrm{~h}=\ldots \text { days } \quad 3 \text { weeks }=\ldots \text { days } \quad 4 \mathrm{~h}=\ldots \mathrm{min}
$$
$180 \mathrm{~s}=3 \mathrm{~min} ; 48 \mathrm{~h}=2$ days; 3 weeks $=21$ days; $4 \mathrm{~h}=240 \mathrm{~min}$