933  Leg-Stamp
닭다리 개다리 1

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There are 160 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 80 heads of Chickens and Dogs together. Altogether there are 220 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?



There are 250 heads of Chickens and Dogs together. Altogether there are 760 legs. How many chickens are there?



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

There are 280 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1810 cents. How many 6-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1730 cents. How many 5-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 750 cents. How many 5-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 900 cents. How many 5-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 800 cents. How many 3-cent stamps are there?

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