SOLUTION: A postal clerk sold 50 postage stamps for $16.05. Some were 39-cent stamps and the rest were 24-cent stamps. How many 39-cent stamps were sold? Is the answer 19?

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Question 364970: A postal clerk sold 50 postage stamps for $16.05. Some were 39-cent stamps and the rest were 24-cent stamps. How many 39-cent stamps were sold?
Is the answer 19?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
19*39 + 31*24 = 1485, not 1605.
19 is not the answer. Why did you think it might be?