503  Leg-Stamp
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There are 130 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



¿ì¸® ¾È¿¡ ÃÑ 150 ¸¶¸®ÀÇ ´ß°ú °³°¡ ÀÖ´Ù. ´Ù¸®¸¦ ¼¼¾îº¸´Ï, ÃÑÇÕÃļ­ 500 ´Ù¸®°¡ ÀÖ´Ù. ¸î¸¶¸®ÀÇ ´ßÀÌ ¿ì¸® ¾È¿¡ Àִ°¡?



There are 130 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1150 cents. How many 7-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1810 cents. How many 8-cent stamps are there?



¿À´Ã 8¿øÂ¥¸® 6¿øÂ¥¸® ¿ìÇ¥ ÃÑ 230ÀåÀ» »ç°í, 1680 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 8¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 120 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 700 cents. How many 5-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1670 cents. How many 8-cent stamps are there?



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