There are 600 boys in a hostel. Each plays either hockey or football or both. If 75% play hockey and 60% play football, how many play both?  Choices.
A) 210  B) 150  C) 200  D) 180  E) 160
n(210) = 75*600/100= 
<gadget id="calculator">75*600/100</gadget>
<output>450</output>
450   n(B)= 60*600/100= 
<gadget id="calculator">60*600/100</gadget>
<output>360</output>
360   n(210UB)= 600   n(210nB) = 450+360-600= 
<gadget id="calculator">450+360-600</gadget>
<output>210</output>
210   210nswer is 210
<result>A</result>
There are 600 boys in a hostel. Each plays either hockey or football or both. If 75% play hockey and 60% play football, how many play both?