923  Leg-Stamp
닭다리 개다리 1

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There are 240 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 680 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?

There are 150 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1060 cents. How many 6-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 970 cents. How many 3-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 190 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 6-cent stamps are there?

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