992  Stamp
How many stamps? 2

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There are 240 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1290 cents. How many 5-cent stamps are there?



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



There are 170 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 6-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1080 cents. How many 5-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1180 cents. How many 7-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1380 cents. How many 6-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 940 cents. How many 7-cent stamps are there?



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There are 200 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1260 cents. How many 3-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



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992    150 80 110 90 140 ( 570 )   110 100 150 90 120 ( 570 )   [[ 1140 ]]