395  Stamp
How many stamps? 2

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There are 150 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1080 cents. How many 8-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1320 cents. How many 8-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1460 cents. How many 8-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 180 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 900 cents. How many 5-cent stamps are there?



오늘 7원짜리 5원짜리 우표 총 210 장을 사고, 1330 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 210 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1610 cents. How many 8-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 1000 cents. How many 3-cent stamps are there?



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395    90 100 140 100 150 ( 580 )   90 90 140 140 150 ( 610 )   [[ 1190 ]]