965  Leg-Stamp
닭다리 개다리 2

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There are 240 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



우리 안에 총 160 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 420 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 140 heads of Chickens and Dogs together. Altogether there are 460 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?

There are 160 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1400 cents. How many 4-cent stamps are there?



오늘 7원짜리 4원짜리 우표 총 210장을 사고, 1200 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 250 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1380 cents. How many 6-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1210 cents. How many 3-cent stamps are there?

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