604  Leg-Stamp
닭다리 개다리 2

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



There are 190 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?



우리 안에 총 150 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 420 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 230 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



There are 230 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?

There are 130 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 550 cents. How many 5-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 880 cents. How many 6-cent stamps are there?



오늘 4원짜리 9원짜리 우표 총 160장을 사고, 1040 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 140 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 880 cents. How many 7-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 760 cents. How many 4-cent stamps are there?

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