162  Leg-Stamp
닭다리 개다리 1

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There are 170 heads of Chickens and Dogs together. Altogether there are 400 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 190 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 360 legs. How many chickens are there?

There are 200 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?



There are 270 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1500 cents. How many 7-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 1060 cents. How many 5-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1460 cents. How many 6-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1580 cents. How many 5-cent stamps are there?

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