|
There are 240 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1560 cents. How many 4-cent stamps are there?
There are 170 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1010 cents. How many 5-cent stamps are there?
There are 230 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1490 cents. How many 7-cent stamps are there?
There are 230 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1220 cents. How many 6-cent stamps are there?
There are 210 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1040 cents. How many 6-cent stamps are there?
|
There are 200 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1090 cents. How many 5-cent stamps are there?
There are 250 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1240 cents. How many 6-cent stamps are there?
오늘 4원짜리 9원짜리 우표 총 170 장을 사고, 1180 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?
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?
There are 170 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?
|