243  Stamp
How many stamps? 1

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There are 130 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 800 cents. How many 8-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 900 cents. How many 6-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1200 cents. How many 5-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 950 cents. How many 5-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1200 cents. How many 4-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1190 cents. How many 7-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1210 cents. How many 3-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 670 cents. How many 3-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1250 cents. How many 5-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 6-cent stamps are there?



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243    70 90 100 150 150 ( 560 )   120 100 140 110 120 ( 590 )   [[ 1150 ]]