John has 10 pairs of matched socks. If he loses 3 individual socks, what is the greatest number of pairs of matched socks he can have left?	Answers
A) 7	B) 8	C) 5	D) 4	E) 3
Because we have to maximize the pair of matched socks, we will remove 1 pairs(2 socks) out of 10 pairs 1 sock from the 2th pair.   Thus the no of matching socks pair remaining = 10 - 2= 
<gadget id="calculator">10 - 2</gadget>
<output>8</output>
8   Answer 8
<result>B</result>
John has 10 pairs of matched socks. If he loses 3 individual socks, what is the greatest number of pairs of matched socks he can have left?