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. 2 people play both cricket and football. How many people play only cricket?  Choose the correct choice
A) 11	B) 5	C) 8	D) 3	E) 9
people play only cricket = total players in cricket- both cricket and football- both cricket and hockey.   people play only cricket = 11-4-2= 
<gadget id="calculator">11-4-2</gadget>
<output>5</output>
5   Answer is 5
<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. 2 people play both cricket and football. How many people play only cricket?