862  Leg-Stamp
닭다리 개다리 2

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There are 160 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



우리 안에 총 150 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 360 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 170 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



There are 240 heads of Chickens and Dogs together. Altogether there are 680 legs. How many chickens are there?

There are 180 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1300 cents. How many 5-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1740 cents. How many 6-cent stamps are there?



오늘 5원짜리 8원짜리 우표 총 170장을 사고, 1150 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 140 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 6-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1310 cents. How many 3-cent stamps are there?

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