527  Stamp
How many stamps? 2

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There are 230 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1280 cents. How many 5-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 5-cent stamps are there?



There are 140 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 940 cents. How many 6-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1500 cents. How many 6-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1180 cents. How many 5-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1130 cents. How many 4-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1100 cents. How many 7-cent stamps are there?



오늘 6원짜리 3원짜리 우표 총 240 장을 사고, 1140 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 150 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 850 cents. How many 5-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 950 cents. How many 4-cent stamps are there?



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527    100 80 90 130 80 ( 480 )   90 100 140 100 80 ( 510 )   [[ 990 ]]