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There are 190 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1130 cents. How many 5-cent stamps are there?
There are 200 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1070 cents. How many 5-cent stamps are there?
There are 240 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1230 cents. How many 4-cent stamps are there?
There are 210 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1160 cents. How many 5-cent stamps are there?
There are 140 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 850 cents. How many 5-cent stamps are there?
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There are 210 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1410 cents. How many 3-cent stamps are there?
There are 190 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1150 cents. How many 5-cent stamps are there?
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There are 190 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1090 cents. How many 4-cent stamps are there?
There are 200 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 900 cents. How many 3-cent stamps are there?
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