768  Leg-Stamp
닭다리 개다리 1

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There are 200 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 230 heads of Chickens and Dogs together. Altogether there are 680 legs. How many chickens are there?



There are 120 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?

There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1650 cents. How many 8-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 980 cents. How many 6-cent stamps are there?



There are 150 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 6-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1310 cents. How many 6-cent stamps are there?



There are 170 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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