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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- Oct 4th 2012, 07:43 AMSpixol123Maths
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?

- Oct 4th 2012, 07:45 AMomardalviRe: Maths
2 birds. 4 legs of those birds, and then the rest 4 legs of the cows, 16+4=20, and six creatures.

- Oct 4th 2012, 07:52 AMSpixol123Re: Maths
how do u know that there is 4 cows to begin with. is the only way trial and error?

- Oct 4th 2012, 07:54 AMSpixol123Re: Maths
couldnt you say that there were 2 cows and 6 birds?

- Oct 4th 2012, 07:55 AMSpixol123Re: Maths
ohh i get it lol.. thanks mate

- Oct 4th 2012, 06:16 PMProve ItRe: Maths
This problem is traditionally solved using algebra - simultaneous equations to be exact. Is that what you are studying atm?

- Oct 5th 2012, 12:15 AMSpixol123Re: Maths
No im just studying basic maths equations for a military aptitude test