890  Stamp
How many stamps? 1

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There are 240 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1440 cents. How many 8-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 6-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 990 cents. How many 3-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 180 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 880 cents. How many 4-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1330 cents. How many 7-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1180 cents. How many 4-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1050 cents. How many 7-cent stamps are there?



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890    140 110 120 130 80 ( 580 )   80 130 110 120 70 ( 510 )   [[ 1090 ]]