629  Stamp
How many stamps? 2

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There are 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1440 cents. How many 8-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 4-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 620 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 760 cents. How many 4-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1560 cents. How many 8-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 760 cents. How many 4-cent stamps are there?



오늘 5원짜리 7원짜리 우표 총 160 장을 사고, 900 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 260 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 890 cents. How many 3-cent stamps are there?



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



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629    110 120 140 130 90 ( 590 )   130 100 110 150 80 ( 570 )   [[ 1160 ]]