469  Leg-Stamp
닭다리 개다리 1

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There are 200 heads of Chickens and Dogs together. Altogether there are 660 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 170 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?

There are 180 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1190 cents. How many 8-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1120 cents. How many 5-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1530 cents. How many 8-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 790 cents. How many 7-cent stamps are there?



There are 260 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1430 cents. How many 4-cent stamps are there?

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