272  Stamp
How many stamps? 1

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There are 150 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 760 cents. How many 4-cent stamps are there?



There are 270 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1740 cents. How many 5-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 4-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 650 cents. How many 4-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1380 cents. How many 5-cent stamps are there?

There are 120 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 430 cents. How many 4-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 7-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1050 cents. How many 5-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1070 cents. How many 5-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1440 cents. How many 3-cent stamps are there?

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