459  Stamp
How many stamps? 2

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There are 190 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 750 cents. How many 5-cent stamps are there?



There are 140 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 630 cents. How many 3-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1360 cents. How many 6-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 850 cents. How many 3-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 740 cents. How many 4-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1440 cents. How many 5-cent stamps are there?



오늘 8원짜리 6원짜리 우표 총 220 장을 사고, 1580 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 160 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 890 cents. How many 4-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 690 cents. How many 3-cent stamps are there?



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459    90 70 80 120 70 ( 430 )   80 90 130 110 80 ( 490 )   [[ 920 ]]