763  Stamp
How many stamps? 2

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There are 230 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1030 cents. How many 4-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 980 cents. How many 5-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1350 cents. How many 4-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1070 cents. How many 7-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1230 cents. How many 7-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1510 cents. How many 8-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1110 cents. How many 3-cent stamps are there?



오늘 8원짜리 6원짜리 우표 총 160 장을 사고, 1160 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 160 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 950 cents. How many 5-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1440 cents. How many 6-cent stamps are there?



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763    120 130 110 110 90 ( 560 )   110 130 100 110 90 ( 540 )   [[ 1100 ]]