652  Stamp
How many stamps? 2

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There are 180 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 680 cents. How many 3-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1350 cents. How many 3-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1600 cents. How many 4-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 760 cents. How many 3-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 710 cents. How many 4-cent stamps are there?



There are 120 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 410 cents. How many 3-cent stamps are there?



오늘 5원짜리 6원짜리 우표 총 180 장을 사고, 970 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 200 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1070 cents. How many 7-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?



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652    110 90 140 90 100 ( 530 )   110 70 110 90 100 ( 480 )   [[ 1010 ]]