709  Leg-Stamp
닭다리 개다리 2

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There are 210 heads of Chickens and Dogs together. Altogether there are 640 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 190 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 500 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 160 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 580 legs. How many chickens are there?

There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 870 cents. How many 5-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1430 cents. How many 3-cent stamps are there?



오늘 8원짜리 7원짜리 우표 총 190장을 사고, 1420 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 270 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1230 cents. How many 5-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1700 cents. How many 8-cent stamps are there?

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