|
There are 180 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 4-cent stamps are there?
There are 200 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1490 cents. How many 7-cent stamps are there?
There are 250 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1610 cents. How many 8-cent stamps are there?
There are 210 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 730 cents. How many 3-cent stamps are there?
There are 190 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1310 cents. How many 5-cent stamps are there?
|
There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1220 cents. How many 4-cent stamps are there?
There are 180 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1390 cents. How many 8-cent stamps are there?
¿À´Ã 6¿øÂ¥¸® 4¿øÂ¥¸® ¿ìÇ¥ ÃÑ 180 ÀåÀ» »ç°í, 880 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 6¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?
There are 260 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1430 cents. How many 7-cent stamps are there?
There are 220 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1430 cents. How many 8-cent stamps are there?
|