738  Leg-Stamp
닭다리 개다리 1

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There are 180 heads of Chickens and Dogs together. Altogether there are 520 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 100 heads of Chickens and Dogs together. Altogether there are 260 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?

There are 260 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1230 cents. How many 6-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1100 cents. How many 8-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1160 cents. How many 4-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1090 cents. How many 6-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1250 cents. How many 5-cent stamps are there?

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