A lemonade stand sold only small and large cups of lemonade on Tuesday. 3/5 of the cups sold were small and the rest were large. If the large cups were sold for 1/6 as much as the small cups, what fraction of Tuesday's total revenue was from the sale of large cups?	Choose the correct choice:  A) 7/16  B) 7/15  C) 10/21  D) 17/35  E) 1/10
Let the total # of cups be 10.   # of small cups sold 3/5*10= 
<gadget id="calculator">3/5*10</gadget>
<output>6</output>
6;   # of large cups sold  10-6= 
<gadget id="calculator"> 10-6</gadget>
<output>4</output>
4;   Let the price of small cup be $6, then the price of larges cup would be 1/6*6= 
<gadget id="calculator">1/6*6</gadget>
<output>1</output>
$1;   Revenue from small cups: 6*$6=$36;   Revenue from large cups cups: 4*$1  6* 6= 
<gadget id="calculator">  6* 6</gadget>
<output>36</output>
$36;   Revenue from large cups cups: 4*$1=$4;   Fraction of total revenue from large cups: 4/(36+4) 4* 1= 
<gadget id="calculator"> 4* 1</gadget>
<output>4</output>
$4;   Fraction of total revenue from large cups: 4/(36+4)=1/10.   Answer: 1/10.
<result>E</result>
A lemonade stand sold only small and large cups of lemonade on Tuesday. 3/5 of the cups sold were small and the rest were large. If the large cups were sold for 1/6 as much as the small cups, what fraction of Tuesday's total revenue was from the sale of large cups?