298  Leg-Stamp
닭다리 개다리 1

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There are 180 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 560 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?



There are 70 heads of Chickens and Dogs together. Altogether there are 200 legs. How many chickens are there?

There are 160 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1000 cents. How many 5-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1300 cents. How many 6-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 730 cents. How many 4-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1080 cents. How many 3-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1200 cents. How many 6-cent stamps are there?

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