942  Leg-Stamp
닭다리 개다리 2

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There are 200 heads of Chickens and Dogs together. Altogether there are 540 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?



우리 안에 총 130 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 380 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 180 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 90 heads of Chickens and Dogs together. Altogether there are 240 legs. How many chickens are there?

There are 260 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1430 cents. How many 5-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1280 cents. How many 3-cent stamps are there?



오늘 6원짜리 5원짜리 우표 총 190장을 사고, 1070 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 160 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 730 cents. How many 5-cent stamps are there?



There are 130 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 900 cents. How many 6-cent stamps are there?

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