391  Stamp
How many stamps? 1

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There are 220 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1490 cents. How many 8-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1570 cents. How many 5-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 900 cents. How many 3-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 3-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 900 cents. How many 5-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 790 cents. How many 4-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1360 cents. How many 4-cent stamps are there?



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



There are 190 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1090 cents. How many 4-cent stamps are there?



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391    130 80 120 70 80 ( 480 )   90 130 80 70 80 ( 450 )   [[ 930 ]]