367  Leg-Stamp
닭다리 개다리 2

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



There are 130 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



우리 안에 총 90 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 240 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



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



There are 170 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?

There are 220 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 980 cents. How many 5-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 6-cent stamps are there?



오늘 5원짜리 9원짜리 우표 총 200장을 사고, 1320 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1180 cents. How many 3-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 670 cents. How many 5-cent stamps are there?

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