175  Stamp
How many stamps? 1

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There are 230 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 4-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 510 cents. How many 4-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1320 cents. How many 4-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 6-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 710 cents. How many 4-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1800 cents. How many 8-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 660 cents. How many 4-cent stamps are there?



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175    110 110 110 90 150 ( 570 )   120 70 110 90 90 ( 480 )   [[ 1050 ]]