954  Leg-Stamp
닭다리 개다리 1

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There are 220 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?



There are 90 heads of Chickens and Dogs together. Altogether there are 260 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?

There are 160 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 730 cents. How many 3-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1700 cents. How many 8-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1170 cents. How many 3-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 880 cents. How many 7-cent stamps are there?



There are 260 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1690 cents. How many 8-cent stamps are there?

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