617  Leg-Stamp
닭다리 개다리 2

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There are 220 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



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



우리 안에 총 210 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 620 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 180 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 250 heads of Chickens and Dogs together. Altogether there are 720 legs. How many chickens are there?

There are 220 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1080 cents. How many 6-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 8-cent stamps are there?



오늘 3원짜리 7원짜리 우표 총 180장을 사고, 820 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 230 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1370 cents. How many 5-cent stamps are there?



There are 240 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1770 cents. How many 7-cent stamps are there?

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