462  Leg-Stamp
닭다리 개다리 2

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



There are 150 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



우리 안에 총 190 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 560 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 70 heads of Chickens and Dogs together. Altogether there are 200 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?

There are 160 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1190 cents. How many 7-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 6-cent stamps are there?



오늘 3원짜리 6원짜리 우표 총 180장을 사고, 750 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 200 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1380 cents. How many 3-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1970 cents. How many 7-cent stamps are there?

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