357  Stamp
How many stamps? 2

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There are 170 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1290 cents. How many 6-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1310 cents. How many 6-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 660 cents. How many 3-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 710 cents. How many 3-cent stamps are there?



There are 120 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 610 cents. How many 3-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1260 cents. How many 5-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1370 cents. How many 3-cent stamps are there?



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There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 880 cents. How many 5-cent stamps are there?



There are 190 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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357    80 110 70 120 70 ( 450 )   90 110 70 120 70 ( 460 )   [[ 910 ]]