In a games hour 4 different types of players came to the ground? cricket 11, hockey 15, football 21, softball 15. In these 4 people play both cricket and hockey, 3people play both softball and football. 3 people play both cricket and football. How many people play only cricket?  Select
A) 11  B) 4  C) 5  D) 3  E) 9
people play only cricket = total players in cricket- both cricket and football- both cricket and hockey.   people play only cricket = 11-4-3= 
<gadget id="calculator">11-4-3</gadget>
<output>4</output>
4   Answer is 4
<result>B</result>
In a games hour 4 different types of players came to the ground? cricket 11, hockey 15, football 21, softball 15. In these 4 people play both cricket and hockey, 3people play both softball and football. 3 people play both cricket and football. How many people play only cricket?