994  Stamp
How many stamps? 1

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There are 270 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1170 cents. How many 3-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 630 cents. How many 4-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1420 cents. How many 5-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1410 cents. How many 3-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1600 cents. How many 4-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1560 cents. How many 7-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



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



There are 200 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 870 cents. How many 5-cent stamps are there?



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994    150 120 120 140 110 ( 640 )   140 120 140 90 70 ( 560 )   [[ 1200 ]]