496  Leg-Stamp
닭다리 개다리 1

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There are 130 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?



There are 240 heads of Chickens and Dogs together. Altogether there are 680 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?

There are 140 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1520 cents. How many 5-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 750 cents. How many 4-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1560 cents. How many 7-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1160 cents. How many 8-cent stamps are there?

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