208  Leg-Stamp
닭다리 개다리 1

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There are 100 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?

There are 190 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1160 cents. How many 4-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 890 cents. How many 5-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1250 cents. How many 7-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1440 cents. How many 8-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1480 cents. How many 8-cent stamps are there?

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