843  Stamp
How many stamps? 2

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There are 230 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1740 cents. How many 8-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 850 cents. How many 7-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 6-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 530 cents. How many 3-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 7-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1760 cents. How many 8-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 940 cents. How many 6-cent stamps are there?



오늘 5원짜리 8원짜리 우표 총 210 장을 사고, 1290 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 250 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1370 cents. How many 6-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



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843    130 70 120 70 80 ( 470 )   130 70 130 120 100 ( 550 )   [[ 1020 ]]