843  Stamp
How many stamps? 2

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There are 250 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1860 cents. How many 6-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 620 cents. How many 4-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1180 cents. How many 4-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1610 cents. How many 4-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2040 cents. How many 8-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 810 cents. How many 3-cent stamps are there?



오늘 3원짜리 5원짜리 우표 총 200 장을 사고, 840 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 170 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 730 cents. How many 4-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1150 cents. How many 8-cent stamps are there?



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843    130 100 110 70 110 ( 520 )   120 130 80 120 110 ( 560 )   [[ 1080 ]]