847  Leg-Stamp
닭다리 개다리 2

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There are 250 heads of Chickens and Dogs together. Altogether there are 760 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 320 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 150 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?

There are 170 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 950 cents. How many 5-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1180 cents. How many 8-cent stamps are there?



오늘 8원짜리 3원짜리 우표 총 200장을 사고, 1350 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 210 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1380 cents. How many 8-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 5-cent stamps are there?

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