651  Stamp
How many stamps? 2

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There are 190 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1260 cents. How many 6-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1120 cents. How many 7-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1680 cents. How many 8-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 930 cents. How many 6-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1690 cents. How many 6-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1390 cents. How many 5-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1210 cents. How many 7-cent stamps are there?



오늘 6원짜리 9원짜리 우표 총 200 장을 사고, 1500 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 210 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1170 cents. How many 7-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1320 cents. How many 6-cent stamps are there?



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651    70 130 150 120 130 ( 600 )   70 70 100 110 120 ( 470 )   [[ 1070 ]]