477  Leg-Stamp
닭다리 개다리 1

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There are 120 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 230 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?

There are 170 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 760 cents. How many 4-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 580 cents. How many 4-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 960 cents. How many 5-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1830 cents. How many 8-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1430 cents. How many 6-cent stamps are there?

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