713  Leg-Stamp
닭다리 개다리 2

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There are 130 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 100 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



우리 안에 총 190 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 600 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 170 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?

There are 270 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1200 cents. How many 3-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1120 cents. How many 6-cent stamps are there?



오늘 8원짜리 3원짜리 우표 총 130장을 사고, 790 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1260 cents. How many 8-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 930 cents. How many 4-cent stamps are there?

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