Marcella has 25 pairs of shoes. If she loses 9 individual shoes, what is the greatest number of matching pairs she could have left?	Choose the correct choice from the following answers:
A) 21	B) 20	C) 19	D) 16	E) 15
greatest number of paired shoes means greatest number of lost pairs   9 shoes have 4 pairs and 1 extra shoes of a pair .so a otal of 5 pairs she loses   leftover pair=20   ANSWER:20
<result>B</result>
Marcella has 25 pairs of shoes. If she loses 9 individual shoes, what is the greatest number of matching pairs she could have left?