365  Stamp
How many stamps? 2

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There are 170 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 810 cents. How many 3-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1390 cents. How many 8-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 3-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?



There are 240 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1860 cents. How many 7-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 150 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 5-cent stamps are there?



오늘 8원짜리 9원짜리 우표 총 200 장을 사고, 1700 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 200 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1260 cents. How many 6-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2130 cents. How many 8-cent stamps are there?



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365    120 140 120 110 150 ( 640 )   100 90 100 140 120 ( 550 )   [[ 1190 ]]