993  Stamp
How many stamps? 2

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There are 210 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1110 cents. How many 5-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1710 cents. How many 6-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 990 cents. How many 6-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 5-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 930 cents. How many 6-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1800 cents. How many 6-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there?



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There are 210 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1260 cents. How many 5-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



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993    150 120 130 90 130 ( 620 )   140 150 100 140 130 ( 660 )   [[ 1280 ]]