A truck owner will refuel his vehicle at a rate of 2 gallons of diesel fuel every 5 seconds. If diesel fuel costs $ 1.25 per gallon, how long will it take for the truck owner to refuel his vehicle with $ 30 worth of diesel fuel?
Choices
A) 20 seconds  B) 1 minute  C) 1 minute 20 seconds  D) 20 minutes  E) 1 hour 20 minutes
2 gal / 5 sec   $1.25 / gal   $30/$1.25 = 24 gal   2 gal / 5 sec with 24 gal   30/ 1.25= 
<gadget id="calculator">  30/ 1.25</gadget>
<output>24</output>
24 gal   2 gal / 5 sec with 24 gal= 60 sec   B. 1 minute
<result>B</result>
A truck owner will refuel his vehicle at a rate of 2 gallons of diesel fuel every 5 seconds. If diesel fuel costs $ 1.25 per gallon, how long will it take for the truck owner to refuel his vehicle with $ 30 worth of diesel fuel?