Bob can fill Q cans of water in 5 minutes. If there are R cans of water in one gallon, how many gallons can Bob fill in 55 minutes? Choose the correct option
A) 5Q/R	B) 11R/Q	C) 11QR	D) 11Q/R	E) 5R/Q
Bob can fill this number of cans in 55 minutes:  (55/5)= 
<gadget id="calculator"> (55/5)</gadget>
<output>11</output>
11Q.   One can is 1/R gallons.   Bob can fill 11Q*(1/R)= 11Q/R gallons of water in 55 minutes.   The answer is 11Q/R.
<result>D</result>
Bob can fill Q cans of water in 5 minutes. If there are R cans of water in one gallon, how many gallons can Bob fill in 55 minutes?