547  Stamp
How many stamps? 2

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There are 230 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1020 cents. How many 5-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1210 cents. How many 7-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1240 cents. How many 8-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1190 cents. How many 4-cent stamps are there?



There are 120 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 430 cents. How many 4-cent stamps are there?



오늘 3원짜리 5원짜리 우표 총 210 장을 사고, 890 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 180 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1080 cents. How many 3-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 6-cent stamps are there?



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547    100 110 120 70 110 ( 510 )   70 70 80 90 70 ( 380 )   [[ 890 ]]