915  Stamp
How many stamps? 1

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There are 190 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 990 cents. How many 6-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 930 cents. How many 6-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 780 cents. How many 7-cent stamps are there?



There are 120 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 670 cents. How many 6-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 890 cents. How many 3-cent stamps are there?

There are 160 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 6-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1710 cents. How many 8-cent stamps are there?



There are 270 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1460 cents. How many 3-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 960 cents. How many 3-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1640 cents. How many 8-cent stamps are there?

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