356  Leg-Stamp
닭다리 개다리 2

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There are 160 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?



우리 안에 총 140 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 380 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 170 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?

There are 180 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 8-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 570 cents. How many 3-cent stamps are there?



오늘 8원짜리 5원짜리 우표 총 150장을 사고, 990 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 240 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1110 cents. How many 6-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1550 cents. How many 7-cent stamps are there?

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