205  Leg-Stamp
닭다리 개다리 1

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There are 130 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



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 130 heads of Chickens and Dogs together. Altogether there are 380 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 260 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1220 cents. How many 3-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 880 cents. How many 4-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1940 cents. How many 8-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1170 cents. How many 3-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 440 cents. How many 3-cent stamps are there?

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