Question
Kathy had $21.50 in coins. She had thrice as many 10-cent as 20-cent coins and 11 more $1 coins than 20-cent coins. How many coins does she have in total?
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Kathy had $21.50 in coins. She had thrice as many 10-cent as 20-cent coins and 11 more $1 coins than 20-cent coins. How many coins does she have in total?