567  Stamp
How many stamps? 2

Name : _________________

refresh

There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1380 cents. How many 3-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1230 cents. How many 6-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1800 cents. How many 6-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1220 cents. How many 5-cent stamps are there?

There are 190 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 980 cents. How many 6-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?



오늘 5원짜리 7원짜리 우표 총 160 장을 사고, 920 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 210 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1380 cents. How many 5-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1420 cents. How many 6-cent stamps are there?

+(         )

(         )+

++[[          ]]++