672  Leg-Stamp
닭다리 개다리 1

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There are 170 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



There are 220 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



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



There are 170 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?

There are 260 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1170 cents. How many 6-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1590 cents. How many 5-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 750 cents. How many 4-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1880 cents. How many 8-cent stamps are there?

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