858  Leg-Stamp
닭다리 개다리 2

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There are 170 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



우리 안에 총 140 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 340 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 160 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?

There are 220 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1170 cents. How many 5-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1160 cents. How many 8-cent stamps are there?



오늘 3원짜리 4원짜리 우표 총 260장을 사고, 890 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 200 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 950 cents. How many 5-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1450 cents. How many 8-cent stamps are there?

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