674  Stamp
How many stamps? 1

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There are 200 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1150 cents. How many 8-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 860 cents. How many 5-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1240 cents. How many 4-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 880 cents. How many 5-cent stamps are there?



There are 280 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1980 cents. How many 8-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1530 cents. How many 6-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 870 cents. How many 5-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1260 cents. How many 8-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 670 cents. How many 7-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1010 cents. How many 4-cent stamps are there?



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674    110 100 150 80 150 ( 590 )   120 110 120 70 130 ( 550 )   [[ 1140 ]]