443  Stamp
How many stamps? 2

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There are 220 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 900 cents. How many 3-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 5-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1320 cents. How many 5-cent stamps are there?



There are 130 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 530 cents. How many 5-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1020 cents. How many 6-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1380 cents. How many 5-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 8-cent stamps are there?



오늘 4원짜리 7원짜리 우표 총 140 장을 사고, 740 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 230 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1350 cents. How many 3-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1120 cents. How many 4-cent stamps are there?



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443    100 80 120 70 90 ( 460 )   150 70 80 120 100 ( 520 )   [[ 980 ]]