469  Stamp
How many stamps? 1

Name : _________________

 

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There are 170 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 910 cents. How many 3-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 950 cents. How many 7-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 890 cents. How many 3-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 4-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 870 cents. How many 3-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 550 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 770 cents. How many 4-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1390 cents. How many 7-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 960 cents. How many 3-cent stamps are there?



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469    90 120 90 80 150 ( 530 )   140 100 140 120 140 ( 640 )   [[ 1170 ]]