632  Stamp
How many stamps? 1

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There are 190 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1300 cents. How many 6-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1320 cents. How many 6-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 630 cents. How many 4-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1140 cents. How many 4-cent stamps are there?



There are 120 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 510 cents. How many 3-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 860 cents. How many 7-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1540 cents. How many 5-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1000 cents. How many 3-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1570 cents. How many 6-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 940 cents. How many 6-cent stamps are there?



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632    110 140 120 90 70 ( 530 )   80 110 120 110 70 ( 490 )   [[ 1020 ]]