638  Leg-Stamp
닭다리 개다리 2

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



There are 140 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?



우리 안에 총 230 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 660 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 200 heads of Chickens and Dogs together. Altogether there are 660 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?

There are 220 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1220 cents. How many 7-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 870 cents. How many 6-cent stamps are there?



오늘 5원짜리 9원짜리 우표 총 190장을 사고, 1310 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 160 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1060 cents. How many 6-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1350 cents. How many 6-cent stamps are there?

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