775  Stamp
How many stamps? 2

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There are 210 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1520 cents. How many 8-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 8-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 5-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 900 cents. How many 3-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1070 cents. How many 4-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 660 cents. How many 3-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1420 cents. How many 4-cent stamps are there?



오늘 8원짜리 7원짜리 우표 총 140 장을 사고, 1060 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 200 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 720 cents. How many 4-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1130 cents. How many 7-cent stamps are there?



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775    130 100 120 150 110 ( 610 )   120 130 80 120 110 ( 560 )   [[ 1170 ]]