936  Stamp
How many stamps? 1

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There are 240 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1220 cents. How many 3-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1520 cents. How many 8-cent stamps are there?



There are 270 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1260 cents. How many 6-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 650 cents. How many 3-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1510 cents. How many 8-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1320 cents. How many 5-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1130 cents. How many 6-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1280 cents. How many 6-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1360 cents. How many 5-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1170 cents. How many 6-cent stamps are there?



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936    140 120 150 100 120 ( 630 )   120 80 120 110 120 ( 550 )   [[ 1180 ]]