One day in the country Dad said he had seen six creatures in a group that had 20 legs between them. The creatures were cows and birds. How many birds were there in the group that he saw?
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2 birds. 4 legs of those birds, and then the rest 4 legs of the cows, 16+4=20, and six creatures.
how do u know that there is 4 cows to begin with. is the only way trial and error?
couldnt you say that there were 2 cows and 6 birds?
ohh i get it lol.. thanks mate
This problem is traditionally solved using algebra - simultaneous equations to be exact. Is that what you are studying atm?
No im just studying basic maths equations for a military aptitude test
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