866  Stamp
How many stamps? 2

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There are 180 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 670 cents. How many 4-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1290 cents. How many 7-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1650 cents. How many 6-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 930 cents. How many 4-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 8-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 530 cents. How many 4-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1530 cents. How many 4-cent stamps are there?



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There are 210 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 7-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 850 cents. How many 4-cent stamps are there?



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