844  Stamp
How many stamps? 1

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There are 230 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 790 cents. How many 3-cent stamps are there?



There are 120 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 460 cents. How many 3-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1310 cents. How many 7-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1740 cents. How many 8-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 860 cents. How many 4-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1670 cents. How many 8-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1590 cents. How many 6-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1390 cents. How many 4-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1200 cents. How many 7-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 710 cents. How many 4-cent stamps are there?



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844    130 70 140 130 90 ( 560 )   130 130 120 80 80 ( 540 )   [[ 1100 ]]