696  Stamp
How many stamps? 2

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There are 270 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1750 cents. How many 6-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 660 cents. How many 4-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1100 cents. How many 6-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 860 cents. How many 7-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 230 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 6-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1460 cents. How many 4-cent stamps are there?



오늘 7원짜리 4원짜리 우표 총 270 장을 사고, 1530 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 200 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 880 cents. How many 3-cent stamps are there?



There are 280 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1360 cents. How many 3-cent stamps are there?



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696    140 90 130 80 140 ( 580 )   100 140 150 130 150 ( 670 )   [[ 1250 ]]