677  Stamp
How many stamps? 2

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There are 240 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1090 cents. How many 6-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 550 cents. How many 3-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1280 cents. How many 4-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1110 cents. How many 8-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 7-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 690 cents. How many 3-cent stamps are there?



오늘 3원짜리 5원짜리 우표 총 180 장을 사고, 760 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 160 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1330 cents. How many 8-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



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677    120 90 100 140 90 ( 540 )   100 110 70 110 90 ( 480 )   [[ 1020 ]]