960  Stamp
How many stamps? 2

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There are 240 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1160 cents. How many 4-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 970 cents. How many 6-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1080 cents. How many 5-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 780 cents. How many 7-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1230 cents. How many 7-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 540 cents. How many 4-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1400 cents. How many 5-cent stamps are there?



오늘 6원짜리 5원짜리 우표 총 160 장을 사고, 900 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 230 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?



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?



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960    140 120 90 90 130 ( 570 )   90 100 100 140 130 ( 560 )   [[ 1130 ]]