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There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1480 cents. How many 5-cent stamps are there?
There are 170 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 920 cents. How many 5-cent stamps are there?
There are 230 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1510 cents. How many 8-cent stamps are there?
There are 230 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1160 cents. How many 4-cent stamps are there?
There are 210 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1250 cents. How many 5-cent stamps are there?
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There are 140 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?
There are 210 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1060 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 8-cent stamps. Altogether they cost 1400 cents. How many 5-cent stamps are there?
There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1410 cents. How many 8-cent stamps are there?
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