983  Leg-Stamp
닭다리 개다리 1

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There are 250 heads of Chickens and Dogs together. Altogether there are 740 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 300 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 150 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?

There are 270 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1480 cents. How many 5-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1170 cents. How many 7-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 4-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1020 cents. How many 4-cent stamps are there?



There are 270 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1500 cents. How many 7-cent stamps are there?

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