596  Leg-Stamp
닭다리 개다리 2

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There are 220 heads of Chickens and Dogs together. Altogether there are 700 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 130 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 420 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 250 heads of Chickens and Dogs together. Altogether there are 740 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?

There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 3-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1260 cents. How many 3-cent stamps are there?



오늘 8원짜리 4원짜리 우표 총 190장을 사고, 1160 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 120 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 820 cents. How many 6-cent stamps are there?



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?

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