375  Stamp
How many stamps? 2

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There are 190 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 990 cents. How many 5-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 870 cents. How many 5-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1340 cents. How many 8-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1440 cents. How many 6-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 740 cents. How many 3-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 880 cents. How many 8-cent stamps are there?



오늘 4원짜리 9원짜리 우표 총 220 장을 사고, 1330 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 230 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1720 cents. How many 8-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1790 cents. How many 8-cent stamps are there?



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375    90 90 120 100 100 ( 500 )   130 80 130 110 110 ( 560 )   [[ 1060 ]]