759  Stamp
How many stamps? 2

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There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1320 cents. How many 5-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1780 cents. How many 7-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 240 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 830 cents. How many 4-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1420 cents. How many 8-cent stamps are there?



There are 120 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 530 cents. How many 4-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



오늘 7원짜리 4원짜리 우표 총 130 장을 사고, 760 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 150 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1030 cents. How many 5-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1330 cents. How many 3-cent stamps are there?



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759    120 100 110 110 110 ( 550 )   70 130 80 80 150 ( 510 )   [[ 1060 ]]