702  Leg-Stamp
닭다리 개다리 1

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There are 190 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 560 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 190 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



There are 100 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?

There are 240 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1110 cents. How many 3-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1220 cents. How many 6-cent stamps are there?



There are 120 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 710 cents. How many 8-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1270 cents. How many 7-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1140 cents. How many 8-cent stamps are there?

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