960  Leg-Stamp
닭다리 개다리 2

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There are 230 heads of Chickens and Dogs together. Altogether there are 660 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 660 legs. How many chickens are there?



우리 안에 총 90 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 260 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 180 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?

There are 250 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1640 cents. How many 8-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1080 cents. How many 5-cent stamps are there?



오늘 8원짜리 4원짜리 우표 총 220장을 사고, 1320 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1200 cents. How many 4-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1510 cents. How many 4-cent stamps are there?

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