205  Stamp
How many stamps? 1

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There are 150 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 850 cents. How many 3-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1070 cents. How many 3-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1200 cents. How many 6-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 140 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 700 cents. How many 6-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1460 cents. How many 4-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 960 cents. How many 4-cent stamps are there?



There are 260 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1710 cents. How many 7-cent stamps are there?



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205    70 100 110 130 80 ( 490 )   70 70 140 150 150 ( 580 )   [[ 1070 ]]