794  Stamp
How many stamps? 2

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There are 220 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1580 cents. How many 6-cent stamps are there?



There are 130 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 600 cents. How many 6-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 570 cents. How many 3-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 810 cents. How many 3-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1360 cents. How many 4-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 820 cents. How many 5-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1480 cents. How many 4-cent stamps are there?



오늘 6원짜리 5원짜리 우표 총 230 장을 사고, 1270 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 120 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 610 cents. How many 3-cent stamps are there?



There are 120 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 890 cents. How many 7-cent stamps are there?



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794    90 70 70 110 70 ( 410 )   80 130 120 70 70 ( 470 )   [[ 880 ]]