SOLUTION: If 20 ladies lost 29 gloves - some lost one glove and some lost both gloves. how many lost one glove ?

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Question 850163: If 20 ladies lost 29 gloves - some lost one glove and some lost both gloves. how many lost one glove ?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
a+b=20,
2a+b=29
a = 9, b = 11
9 lost both (18) and 11 lost one
18+11=29