158  Leg-Stamp
닭다리 개다리 1

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There are 220 heads of Chickens and Dogs together. Altogether there are 600 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 250 heads of Chickens and Dogs together. Altogether there are 760 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?



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

There are 250 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 850 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1200 cents. How many 4-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 700 cents. How many 4-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 610 cents. How many 4-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1610 cents. How many 8-cent stamps are there?

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