141  Leg-Stamp
닭다리 개다리 1

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There are 190 heads of Chickens and Dogs together. Altogether there are 480 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 220 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



There are 90 heads of Chickens and Dogs together. Altogether there are 260 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?

There are 150 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1100 cents. How many 7-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 740 cents. How many 3-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1080 cents. How many 3-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1290 cents. How many 7-cent stamps are there?

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