813  Leg-Stamp
닭다리 개다리 2

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There are 190 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 220 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



우리 안에 총 170 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 500 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 130 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?

There are 140 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1190 cents. How many 8-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 720 cents. How many 6-cent stamps are there?



오늘 3원짜리 4원짜리 우표 총 220장을 사고, 780 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 210 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1500 cents. How many 6-cent stamps are there?



There are 280 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 970 cents. How many 3-cent stamps are there?

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