763  Leg-Stamp
닭다리 개다리 2

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There are 140 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?



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



우리 안에 총 240 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 740 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 250 heads of Chickens and Dogs together. Altogether there are 720 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 300 legs. How many chickens are there?

There are 150 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 6-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1240 cents. How many 6-cent stamps are there?



오늘 8원짜리 6원짜리 우표 총 250장을 사고, 1800 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 210 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 4-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1120 cents. How many 4-cent stamps are there?

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