675  Stamp
How many stamps? 1

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There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1560 cents. How many 8-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1480 cents. How many 8-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 940 cents. How many 3-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1510 cents. How many 7-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1490 cents. How many 8-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 530 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1110 cents. How many 4-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1460 cents. How many 8-cent stamps are there?



There are 240 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1900 cents. How many 7-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 740 cents. How many 4-cent stamps are there?



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675    120 110 130 100 90 ( 550 )   70 120 130 130 110 ( 560 )   [[ 1110 ]]