612  Stamp
How many stamps? 2

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There are 240 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1480 cents. How many 4-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 1030 cents. How many 5-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1000 cents. How many 5-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 940 cents. How many 4-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 590 cents. How many 3-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 930 cents. How many 7-cent stamps are there?



오늘 4원짜리 8원짜리 우표 총 260 장을 사고, 1480 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 260 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1540 cents. How many 5-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



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612    110 80 140 130 110 ( 570 )   90 70 150 140 150 ( 600 )   [[ 1170 ]]