258  Stamp
How many stamps? 2

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There are 160 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1020 cents. How many 3-cent stamps are there?



There are 270 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1480 cents. How many 5-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1690 cents. How many 8-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 550 cents. How many 4-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 820 cents. How many 3-cent stamps are there?



There are 120 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 700 cents. How many 5-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1160 cents. How many 7-cent stamps are there?



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There are 140 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 4-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1410 cents. How many 3-cent stamps are there?



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258    70 140 110 100 110 ( 530 )   70 80 150 70 110 ( 480 )   [[ 1010 ]]