928  Stamp
How many stamps? 1

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There are 200 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 4-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1560 cents. How many 7-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1460 cents. How many 7-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 760 cents. How many 5-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1310 cents. How many 7-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1220 cents. How many 4-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 880 cents. How many 5-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 780 cents. How many 6-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 5-cent stamps are there?



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928    140 120 110 80 80 ( 530 )   140 130 120 70 120 ( 580 )   [[ 1110 ]]