831  Leg-Stamp
닭다리 개다리 1

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There are 210 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 200 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 500 legs. How many chickens are there?

There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1060 cents. How many 3-cent stamps are there?



There are 130 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 730 cents. How many 6-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1170 cents. How many 5-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 8-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 920 cents. How many 4-cent stamps are there?

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