217  Stamp
How many stamps? 1

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There are 170 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 990 cents. How many 7-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1130 cents. How many 5-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1040 cents. How many 7-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1560 cents. How many 5-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1820 cents. How many 6-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1570 cents. How many 8-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1890 cents. How many 8-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 3-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 790 cents. How many 3-cent stamps are there?



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217    70 130 80 130 130 ( 540 )   140 90 140 120 130 ( 620 )   [[ 1160 ]]