379  Stamp
How many stamps? 1

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There are 140 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 470 cents. How many 3-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1200 cents. How many 4-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1140 cents. How many 5-cent stamps are there?



There are 120 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 560 cents. How many 3-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 840 cents. How many 5-cent stamps are there?

There are 160 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 850 cents. How many 4-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1360 cents. How many 4-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1180 cents. How many 8-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1190 cents. How many 8-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1490 cents. How many 8-cent stamps are there?

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