219  Stamp
How many stamps? 2

Name : _________________

refresh

There are 120 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 510 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1890 cents. How many 8-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1020 cents. How many 6-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there?

There are 130 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 5-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1320 cents. How many 5-cent stamps are there?



오늘 6원짜리 5원짜리 우표 총 210 장을 사고, 1160 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 220 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1360 cents. How many 5-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1140 cents. How many 5-cent stamps are there?

+(         )

(         )+

++[[          ]]++