952  Leg-Stamp
닭다리 개다리 1

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There are 180 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 220 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



There are 70 heads of Chickens and Dogs together. Altogether there are 200 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 220 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1220 cents. How many 7-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1230 cents. How many 8-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 960 cents. How many 6-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1230 cents. How many 7-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?

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