714  Stamp
How many stamps? 1

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There are 210 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1020 cents. How many 4-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 8-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1440 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 200 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1190 cents. How many 7-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1140 cents. How many 7-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 150 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1150 cents. How many 4-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 760 cents. How many 5-cent stamps are there?



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714    120 80 90 110 130 ( 530 )   120 120 70 130 110 ( 550 )   [[ 1080 ]]