973  Stamp
How many stamps? 2

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There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1420 cents. How many 5-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 960 cents. How many 5-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1810 cents. How many 7-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 820 cents. How many 5-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1150 cents. How many 7-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there?



There are 260 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1380 cents. How many 7-cent stamps are there?



오늘 4원짜리 5원짜리 우표 총 170 장을 사고, 760 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 230 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1340 cents. How many 7-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 4-cent stamps are there?



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973    140 120 130 80 130 ( 600 )   140 150 90 140 120 ( 640 )   [[ 1240 ]]