685  Stamp
How many stamps? 2

Name : _________________

 

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There are 170 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1160 cents. How many 8-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 760 cents. How many 7-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1190 cents. How many 3-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 870 cents. How many 6-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1060 cents. How many 7-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1610 cents. How many 6-cent stamps are there?



There are 140 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 740 cents. How many 6-cent stamps are there?



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There are 210 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 900 cents. How many 6-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1240 cents. How many 4-cent stamps are there?



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685    120 70 140 90 100 ( 520 )   140 90 80 90 130 ( 530 )   [[ 1050 ]]