602  Leg-Stamp
닭다리 개다리 1

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There are 130 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 300 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?

There are 120 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 740 cents. How many 7-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 950 cents. How many 3-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1210 cents. How many 7-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1420 cents. How many 8-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 1000 cents. How many 3-cent stamps are there?

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