219  Stamp
How many stamps? 1

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There are 140 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 6-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1340 cents. How many 4-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1110 cents. How many 7-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1150 cents. How many 6-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1000 cents. How many 5-cent stamps are there?



There are 150 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 840 cents. How many 6-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1420 cents. How many 6-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1230 cents. How many 7-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 6-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 900 cents. How many 5-cent stamps are there?



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219    70 110 130 110 120 ( 540 )   90 120 150 140 140 ( 640 )   [[ 1180 ]]