704  Leg-Stamp
닭다리 개다리 1

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There are 190 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?

There are 170 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1290 cents. How many 7-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1440 cents. How many 6-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 980 cents. How many 5-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1820 cents. How many 6-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 8-cent stamps are there?

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