176  Leg-Stamp
닭다리 개다리 2

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There are 140 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



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



우리 안에 총 170 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 560 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 150 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?

There are 220 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1340 cents. How many 5-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 990 cents. How many 7-cent stamps are there?



오늘 6원짜리 7원짜리 우표 총 150장을 사고, 980 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 220 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1010 cents. How many 4-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 670 cents. How many 7-cent stamps are there?

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