A windmill is taking advantage of strong air currents in order to produce electrical energy. On a typical day the wind speed is around 20 mph and in that speed the windmill produces 300 kw/h (kilowatts per hour). On a stormy day a windmill produces 20% more energy. How much kw/h can three windmills produce in two hours on a stormy day?  Choose the correct answer.
A) 2880.  B) 2160.  C) 5780  D) 5760  E) 6380.
Normal Day = 300 kw/h   Stormy Day = 300*1.2= 
<gadget id="calculator">300*1.2</gadget>
<output>360</output>
360 kw/h   3 windmills for 2 hours on stormy day     360*3*2= 
<gadget id="calculator">  360*3*2</gadget>
<output>2_160</output>
2160   Answer: 2160.
<result>B</result>
A windmill is taking advantage of strong air currents in order to produce electrical energy. On a typical day the wind speed is around 20 mph and in that speed the windmill produces 300 kw/h (kilowatts per hour). On a stormy day a windmill produces 20% more energy. How much kw/h can three windmills produce in two hours on a stormy day?