758  Leg-Stamp
닭다리 개다리 1

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There are 200 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 230 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 440 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?



There are 180 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 3-cent stamps. Altogether they cost 890 cents. How many 8-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1030 cents. How many 5-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1530 cents. How many 7-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1270 cents. How many 3-cent stamps are there?

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