944  Stamp
How many stamps? 2

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There are 190 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 990 cents. How many 6-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1380 cents. How many 7-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1010 cents. How many 8-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 810 cents. How many 4-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1110 cents. How many 7-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1080 cents. How many 6-cent stamps are there?



오늘 7원짜리 3원짜리 우표 총 180 장을 사고, 1020 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 230 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1480 cents. How many 7-cent stamps are there?



There are 270 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1830 cents. How many 5-cent stamps are there?



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944    140 140 70 90 90 ( 530 )   110 130 120 100 150 ( 610 )   [[ 1140 ]]