264  Stamp
How many stamps? 2

Name : _________________

 

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There are 150 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 850 cents. How many 3-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1730 cents. How many 4-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1230 cents. How many 4-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 650 cents. How many 3-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 5-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



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There are 160 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



There are 270 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



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264    70 140 150 100 150 ( 610 )   150 70 120 70 150 ( 560 )   [[ 1170 ]]