343  Stamp
How many stamps? 2

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There are 130 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 630 cents. How many 6-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1010 cents. How many 7-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1350 cents. How many 8-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1250 cents. How many 5-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 620 cents. How many 4-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 610 cents. How many 4-cent stamps are there?



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



오늘 4원짜리 3원짜리 우표 총 220 장을 사고, 800 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 200 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1480 cents. How many 7-cent stamps are there?



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343    80 110 120 70 80 ( 460 )   90 130 140 80 120 ( 560 )   [[ 1020 ]]