697  Leg-Stamp
닭다리 개다리 2

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There are 190 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



우리 안에 총 240 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 740 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 130 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?

There are 180 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1000 cents. How many 5-cent stamps are there?



There are 120 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 580 cents. How many 4-cent stamps are there?



오늘 6원짜리 3원짜리 우표 총 220장을 사고, 960 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 160 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1040 cents. How many 8-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1630 cents. How many 6-cent stamps are there?

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