Out of 400 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 ?  Choose the correct choice from the following answers:
A) 120
B) 150
C) 100
D) 180
E) 220
n(A)=325,n(B)=175,n(AuB)=400-50= 
<gadget id="calculator">400-50</gadget>
<output>350</output>
350.   Required number= n(AnB)=n (A)+n (B)-n(AuB)=325+175-350= 
<gadget id="calculator">325+175-350</gadget>
<output>150</output>
150.   Answer is 150
<result>B</result>
Out of 400 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 ?