exam Maths Puzzle Numerical Ability

A cereal company has announced a contest in which it is giving away a mountain bike. To win the bike you must collect the letters"YOU WIN". There is one letter in each of the speci

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exam Other Question

on a farm there are 65 animals, all cows and ducks. The 65 animals have a total of 224 legs. How many cows and ducks are there? Justify your answer. How would I simplify this rational expression that is in fraction form?
9-b^2/b^2-b-6
I came up with -b+3/b-2. Is that correct?