969  Leg-Stamp
닭다리 개다리 2

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There are 170 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



There are 230 heads of Chickens and Dogs together. Altogether there are 680 legs. How many chickens are there?



우리 안에 총 180 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 440 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 230 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?

There are 180 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1550 cents. How many 8-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1110 cents. How many 3-cent stamps are there?



오늘 8원짜리 3원짜리 우표 총 200장을 사고, 1000 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1240 cents. How many 5-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1030 cents. How many 8-cent stamps are there?

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