110  Leg-Stamp
닭다리 개다리 2

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There are 210 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



우리 안에 총 120 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 340 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 210 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?

There are 200 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1160 cents. How many 7-cent stamps are there?



There are 270 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1360 cents. How many 6-cent stamps are there?



오늘 3원짜리 9원짜리 우표 총 230장을 사고, 1290 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1400 cents. How many 4-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?

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