976  Leg-Stamp
닭다리 개다리 2

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



There are 220 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?



우리 안에 총 170 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 580 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 110 heads of Chickens and Dogs together. Altogether there are 300 legs. How many chickens are there?

There are 220 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1230 cents. How many 6-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?



오늘 4원짜리 3원짜리 우표 총 250장을 사고, 870 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 200 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 8-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1270 cents. How many 7-cent stamps are there?

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