|
There are 240 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2030 cents. How many 8-cent stamps are there?
There are 180 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1370 cents. How many 8-cent stamps are there?
There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 4-cent stamps are there?
There are 180 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1060 cents. How many 5-cent stamps are there?
There are 180 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 870 cents. How many 3-cent stamps are there?
|
There are 160 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?
There are 240 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 940 cents. How many 3-cent stamps are there?
오늘 6원짜리 8원짜리 우표 총 170 장을 사고, 1140 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?
There are 210 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 3-cent stamps are there?
There are 130 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1100 cents. How many 8-cent stamps are there?
|