413  Stamp
How many stamps? 2

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There are 210 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1530 cents. How many 5-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1170 cents. How many 3-cent stamps are there?



There are 120 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 8-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1320 cents. How many 5-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1290 cents. How many 3-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 3-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 720 cents. How many 4-cent stamps are there?



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There are 140 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 980 cents. How many 8-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1230 cents. How many 3-cent stamps are there?



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413    90 150 70 120 70 ( 500 )   80 90 100 70 80 ( 420 )   [[ 920 ]]