619  Stamp
How many stamps? 2

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There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 690 cents. How many 3-cent stamps are there?



There are 120 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 860 cents. How many 8-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1150 cents. How many 8-cent stamps are there?



There are 130 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 630 cents. How many 6-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 560 cents. How many 3-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1590 cents. How many 6-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



오늘 6원짜리 9원짜리 우표 총 190 장을 사고, 1500 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 230 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1550 cents. How many 5-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1270 cents. How many 3-cent stamps are there?



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619    110 70 100 80 80 ( 440 )   100 90 70 130 120 ( 510 )   [[ 950 ]]