Out of 420 students of a school, 325 play football, 175 play cricket and 50 neither play football nor cricket. How many students play both football and cricket ?
Choices.
A) 120	B) 150	C) 130	D) 180	E) 220
n(A)=325,n(B)=175,n(AuB)=420-50= 
<gadget id="calculator">420-50</gadget>
<output>370</output>
370.   Required number= n(AnB)=n (A)+n (B)-n(AuB)=325+175-370= 
<gadget id="calculator">325+175-370</gadget>
<output>130</output>
130.   Answer is 130
<result>C</result>
Out of 420 students of a school, 325 play football, 175 play cricket and 50 neither play football nor cricket. How many students play both football and cricket ?