757  Stamp
How many stamps? 2

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There are 160 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1060 cents. How many 7-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1400 cents. How many 5-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 750 cents. How many 5-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1020 cents. How many 7-cent stamps are there?



There are 270 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1480 cents. How many 5-cent stamps are there?



오늘 4원짜리 7원짜리 우표 총 160 장을 사고, 790 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 250 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



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757    100 120 70 70 70 ( 430 )   90 140 110 140 70 ( 550 )   [[ 980 ]]