447  Stamp
How many stamps? 2

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There are 170 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1170 cents. How many 5-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1550 cents. How many 8-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1240 cents. How many 8-cent stamps are there?



There are 270 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 670 cents. How many 5-cent stamps are there?



오늘 5원짜리 9원짜리 우표 총 210 장을 사고, 1410 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 240 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1020 cents. How many 3-cent stamps are there?



There are 280 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1270 cents. How many 5-cent stamps are there?



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447    90 150 150 110 150 ( 650 )   150 70 120 140 150 ( 630 )   [[ 1280 ]]