863  Leg-Stamp
닭다리 개다리 2

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There are 200 heads of Chickens and Dogs together. Altogether there are 580 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?



우리 안에 총 160 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 520 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 180 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?

There are 150 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1110 cents. How many 6-cent stamps are there?



There are 280 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1920 cents. How many 5-cent stamps are there?



오늘 5원짜리 6원짜리 우표 총 210장을 사고, 1150 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 200 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1000 cents. How many 8-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1130 cents. How many 8-cent stamps are there?

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