218  Stamp
How many stamps? 1

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There are 180 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 890 cents. How many 8-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1060 cents. How many 5-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1350 cents. How many 7-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1260 cents. How many 7-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 1020 cents. How many 5-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1480 cents. How many 8-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1780 cents. How many 8-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 760 cents. How many 4-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 8-cent stamps are there?



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218    70 140 150 150 150 ( 660 )   150 110 110 100 100 ( 570 )   [[ 1230 ]]