107  Leg-Stamp
닭다리 개다리 1

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There are 180 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 160 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 580 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 100 heads of Chickens and Dogs together. Altogether there are 260 legs. How many chickens are there?

There are 210 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1320 cents. How many 8-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 450 cents. How many 3-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1090 cents. How many 7-cent stamps are there?

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