993  Stamp
How many stamps? 1

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There are 200 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1350 cents. How many 7-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1250 cents. How many 5-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 610 cents. How many 3-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 750 cents. How many 3-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1110 cents. How many 7-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1140 cents. How many 5-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 980 cents. How many 3-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 3-cent stamps are there?



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993    150 130 70 90 70 ( 510 )   70 90 120 110 140 ( 530 )   [[ 1040 ]]