358  Leg-Stamp
닭다리 개다리 2

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There are 180 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 300 legs. How many chickens are there?



우리 안에 총 100 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 320 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



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



There are 170 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?

There are 170 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1260 cents. How many 8-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 710 cents. How many 5-cent stamps are there?



오늘 5원짜리 8원짜리 우표 총 190장을 사고, 1100 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 250 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2100 cents. How many 8-cent stamps are there?



There are 120 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 6-cent stamps are there?

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