792  Stamp
How many stamps? 1

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There are 240 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1640 cents. How many 5-cent stamps are there?



There are 260 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1640 cents. How many 8-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 700 cents. How many 4-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 970 cents. How many 7-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1330 cents. How many 6-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 810 cents. How many 4-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 880 cents. How many 5-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 5-cent stamps are there?



There are 120 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 910 cents. How many 8-cent stamps are there?



There are 120 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 500 cents. How many 5-cent stamps are there?



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792    130 150 70 70 140 ( 560 )   80 80 120 70 70 ( 420 )   [[ 980 ]]