897  Stamp
How many stamps? 1

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There are 250 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1550 cents. How many 4-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1740 cents. How many 8-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1170 cents. How many 4-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1490 cents. How many 5-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 850 cents. How many 7-cent stamps are there?



There are 120 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 670 cents. How many 6-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1300 cents. How many 8-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1400 cents. How many 5-cent stamps are there?



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897    140 100 130 100 120 ( 590 )   100 70 70 100 140 ( 480 )   [[ 1070 ]]