603  Leg-Stamp
닭다리 개다리 2

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



There are 160 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



우리 안에 총 160 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 520 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 240 heads of Chickens and Dogs together. Altogether there are 740 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?

There are 210 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1330 cents. How many 5-cent stamps are there?



오늘 5원짜리 6원짜리 우표 총 140장을 사고, 770 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 190 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1240 cents. How many 7-cent stamps are there?



There are 130 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 730 cents. How many 6-cent stamps are there?

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