970  Stamp
How many stamps? 2

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There are 190 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1130 cents. How many 7-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1020 cents. How many 4-cent stamps are there?



There are 140 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 700 cents. How many 6-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 5-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1400 cents. How many 7-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1590 cents. How many 8-cent stamps are there?



오늘 4원짜리 6원짜리 우표 총 170 장을 사고, 860 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 220 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 750 cents. How many 3-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 790 cents. How many 4-cent stamps are there?



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970    140 110 120 70 120 ( 560 )   120 130 80 130 110 ( 570 )   [[ 1130 ]]