849  Leg-Stamp
닭다리 개다리 1

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There are 170 heads of Chickens and Dogs together. Altogether there are 520 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 heads of Chickens and Dogs together. Altogether there are 760 legs. How many chickens are there?



There are 140 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 220 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1160 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 600 cents. How many 3-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1410 cents. How many 5-cent stamps are there?

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