758  Stamp
How many stamps? 1

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There are 180 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1380 cents. How many 8-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1100 cents. How many 4-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 920 cents. How many 4-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1330 cents. How many 3-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 580 cents. How many 3-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1320 cents. How many 7-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 530 cents. How many 3-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 890 cents. How many 7-cent stamps are there?



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758    120 100 110 150 110 ( 590 )   120 80 120 110 70 ( 500 )   [[ 1090 ]]