657  Stamp
How many stamps? 2

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There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 870 cents. How many 5-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1420 cents. How many 5-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 780 cents. How many 3-cent stamps are there?



There are 270 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 2040 cents. How many 8-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1240 cents. How many 5-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 6-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



오늘 7원짜리 5원짜리 우표 총 190 장을 사고, 1090 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 250 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1300 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 4-cent stamps are there?



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657    110 140 100 150 140 ( 640 )   110 120 70 140 150 ( 590 )   [[ 1230 ]]