A firefighter's hose can deliver 20 gallons of water per minute.  For a building fire that requires 4000 gallons of water to put out, how long will it take, in minutes, for a team of 5 firefighters, each with their own hose, to put out the fire?
A team of 5 firefighters with hoses can deliver 5 * 20 = 
<gadget id="calculator">5*20</gadget>
<output>100</output>
100 gallons of water per minute.
To deliver 4000 gallons, this team will take 4000/100 = 
<gadget id="calculator">4000/100</gadget>
<output>40</output>
40 minutes to extinguish the fire.

<result>40</result>