766  Leg-Stamp
닭다리 개다리 1

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There are 240 heads of Chickens and Dogs together. Altogether there are 740 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 440 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 170 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?

There are 170 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1060 cents. How many 8-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1150 cents. How many 5-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 920 cents. How many 3-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 780 cents. How many 4-cent stamps are there?



There are 270 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1740 cents. How many 5-cent stamps are there?

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