574  Leg-Stamp
닭다리 개다리 1

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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 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 480 legs. How many chickens are there?



There are 230 heads of Chickens and Dogs together. Altogether there are 660 legs. How many chickens are there?

There are 230 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 820 cents. How many 3-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1420 cents. How many 5-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1340 cents. How many 8-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 670 cents. How many 5-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1140 cents. How many 3-cent stamps are there?

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