626  Stamp
How many stamps? 1

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There are 250 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1600 cents. How many 8-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 730 cents. How many 4-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1320 cents. How many 6-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 730 cents. How many 5-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1240 cents. How many 4-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1020 cents. How many 6-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 790 cents. How many 4-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



There are 280 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1770 cents. How many 4-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1110 cents. How many 6-cent stamps are there?



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626    150 100 80 110 90 ( 530 )   110 100 100 150 120 ( 580 )   [[ 1110 ]]