861  Stamp
How many stamps? 2

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There are 210 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 970 cents. How many 5-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1410 cents. How many 8-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 580 cents. How many 4-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 970 cents. How many 3-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 930 cents. How many 7-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 740 cents. How many 3-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 820 cents. How many 3-cent stamps are there?



오늘 8원짜리 9원짜리 우표 총 270 장을 사고, 2280 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 170 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 6-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1170 cents. How many 8-cent stamps are there?



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861    130 80 100 140 90 ( 540 )   100 110 150 100 90 ( 550 )   [[ 1090 ]]