937  Leg-Stamp
닭다리 개다리 2

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There are 190 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



우리 안에 총 180 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 460 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 130 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?

There are 240 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1290 cents. How many 7-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1610 cents. How many 5-cent stamps are there?



오늘 7원짜리 5원짜리 우표 총 210장을 사고, 1230 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 190 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1210 cents. How many 4-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1380 cents. How many 6-cent stamps are there?

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