243  Leg-Stamp
닭다리 개다리 1

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There are 150 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 340 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 180 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 100 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?

There are 270 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1760 cents. How many 7-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1560 cents. How many 5-cent stamps are there?



There are 120 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 580 cents. How many 4-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1390 cents. How many 8-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1380 cents. How many 8-cent stamps are there?

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