801  Stamp
How many stamps? 1

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There are 180 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1190 cents. How many 8-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 740 cents. How many 4-cent stamps are there?



There are 120 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 910 cents. How many 8-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 4-cent stamps are there?



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



There are 230 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1030 cents. How many 4-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1430 cents. How many 4-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 4-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1280 cents. How many 8-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1650 cents. How many 6-cent stamps are there?



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801    130 110 70 70 70 ( 450 )   120 110 130 110 80 ( 550 )   [[ 1000 ]]