308  Leg-Stamp
닭다리 개다리 1

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There are 110 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?



There are 230 heads of Chickens and Dogs together. Altogether there are 720 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?



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



There are 100 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 160 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 710 cents. How many 5-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1310 cents. How many 5-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1730 cents. How many 8-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1300 cents. How many 7-cent stamps are there?



There are 150 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 740 cents. How many 6-cent stamps are there?



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