979  Leg-Stamp
닭다리 개다리 2

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There are 210 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



우리 안에 총 190 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 640 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 190 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?

There are 180 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 760 cents. How many 5-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1320 cents. How many 8-cent stamps are there?



오늘 8원짜리 6원짜리 우표 총 140장을 사고, 1000 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 230 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 970 cents. How many 5-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?

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