184  Stamp
How many stamps? 1

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There are 140 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 8-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1230 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1050 cents. How many 4-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1260 cents. How many 3-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1420 cents. How many 8-cent stamps are there?



There are 280 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1590 cents. How many 8-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1010 cents. How many 8-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1620 cents. How many 8-cent stamps are there?



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?



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184    70 130 140 100 140 ( 580 )   150 70 110 150 150 ( 630 )   [[ 1210 ]]