316  Stamp
How many stamps? 2

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There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 590 cents. How many 4-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 820 cents. How many 3-cent stamps are there?



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



There are 140 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1120 cents. How many 7-cent stamps are there?



There are 120 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 940 cents. How many 7-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1270 cents. How many 8-cent stamps are there?



오늘 8원짜리 7원짜리 우표 총 140 장을 사고, 1060 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 160 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 800 cents. How many 7-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1630 cents. How many 5-cent stamps are there?



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316    80 100 120 70 70 ( 440 )   70 80 80 80 150 ( 460 )   [[ 900 ]]