954  Leg-Stamp
닭다리 개다리 2

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There are 180 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



우리 안에 총 180 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 440 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 230 heads of Chickens and Dogs together. Altogether there are 720 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?

There are 180 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 890 cents. How many 8-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?



오늘 7원짜리 4원짜리 우표 총 180장을 사고, 1020 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 150 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 870 cents. How many 7-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1290 cents. How many 6-cent stamps are there?

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