662  Leg-Stamp
닭다리 개다리 2

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There are 110 heads of Chickens and Dogs together. Altogether there are 300 legs. How many chickens are there?



There are 100 heads of Chickens and Dogs together. Altogether there are 260 legs. How many chickens are there?



우리 안에 총 180 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 480 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 230 heads of Chickens and Dogs together. Altogether there are 660 legs. How many chickens are there?



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

There are 160 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 680 cents. How many 5-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1280 cents. How many 5-cent stamps are there?



오늘 5원짜리 8원짜리 우표 총 160장을 사고, 1010 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 170 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 5-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1100 cents. How many 5-cent stamps are there?

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