156  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 80 heads of Chickens and Dogs together. Altogether there are 220 legs. How many chickens are there?



우리 안에 총 170 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 440 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 210 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?

There are 280 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1620 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



오늘 3원짜리 8원짜리 우표 총 220장을 사고, 1260 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



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?



There are 190 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1390 cents. How many 5-cent stamps are there?

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