762  Leg-Stamp
닭다리 개다리 1

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There are 230 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 560 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 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1350 cents. How many 8-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 680 cents. How many 4-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 5-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 850 cents. How many 4-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1440 cents. How many 8-cent stamps are there?

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