158  Leg-Stamp
닭다리 개다리 2

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There are 260 heads of Chickens and Dogs together. Altogether there are 760 legs. How many chickens are there?



There are 90 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



우리 안에 총 220 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 680 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 150 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?

There are 220 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1280 cents. How many 8-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 3-cent stamps are there?



오늘 3원짜리 4원짜리 우표 총 240장을 사고, 840 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 230 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1190 cents. How many 3-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 950 cents. How many 4-cent stamps are there?

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