A simple rain gauge collects rainfall in a cylindrical container. If $12\text{ mm}$ of rain accumulates…
A simple rain gauge collects rainfall in a cylindrical container. If $12\text{ mm}$ of rain accumulates evenly over $3\text{ hours}$ of continuous rain, what is the rate of rainfall per hour?
$3\text{ mm/hour}$
$4\text{ mm/hour}$
$6\text{ mm/hour}$
$36\text{ mm/hour}$
Solution
The rate of rainfall is calculated by dividing total depth by time: $12\text{ mm} \div 3\text{ hours} = 4\text{ mm/hour}$.