485  Stamp
How many stamps? 1

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There are 200 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1100 cents. How many 3-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?



There are 190 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 6-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1390 cents. How many 7-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1200 cents. How many 6-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1140 cents. How many 4-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1410 cents. How many 5-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 640 cents. How many 4-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1370 cents. How many 7-cent stamps are there?



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485    100 70 80 120 70 ( 440 )   80 150 90 70 80 ( 470 )   [[ 910 ]]