183  Leg-Stamp
닭다리 개다리 2

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There are 110 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 680 legs. How many chickens are there?



우리 안에 총 160 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 440 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



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



There are 170 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?

There are 130 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 540 cents. How many 3-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 600 cents. How many 4-cent stamps are there?



오늘 8원짜리 4원짜리 우표 총 210장을 사고, 1280 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 260 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1430 cents. How many 8-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 770 cents. How many 7-cent stamps are there?

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