211  Stamp
How many stamps? 1

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There are 160 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



There are 270 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 2150 cents. How many 7-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1160 cents. How many 4-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 800 cents. How many 5-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 610 cents. How many 4-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 8-cent stamps. Altogether they cost 1290 cents. How many 7-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 510 cents. How many 3-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 810 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1160 cents. How many 8-cent stamps are there?



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211    70 140 110 100 100 ( 520 )   110 70 70 110 100 ( 460 )   [[ 980 ]]