809  Leg-Stamp
닭다리 개다리 2

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There are 170 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



우리 안에 총 120 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 300 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 150 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?

There are 240 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 5-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1180 cents. How many 8-cent stamps are there?



오늘 8원짜리 5원짜리 우표 총 240장을 사고, 1560 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 210 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 790 cents. How many 3-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1170 cents. How many 5-cent stamps are there?

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