888  Stamp
How many stamps? 1

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There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1620 cents. How many 8-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1050 cents. How many 5-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 500 cents. How many 4-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 800 cents. How many 3-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1130 cents. How many 5-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 460 cents. How many 4-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 750 cents. How many 6-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1170 cents. How many 7-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1300 cents. How many 5-cent stamps are there?



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888    140 120 110 80 80 ( 530 )   130 70 70 90 140 ( 500 )   [[ 1030 ]]