exam Maths Puzzle Numerical Ability

Please help with this problem.

What is the probability of choosing a man that is wearing a hat. There are 20 men with hats, 30 men without hats, 25 women with hats, and 10 women without hats.

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exam Other Question
If f(x)=x(x-1)(x-4)^2, use interval notation to give all values of x where
f(x)>0. Find all (vertical and horizontal) asymptotes of f(x) = 2x^2 + 4x + 2 / 1-x^2. What is the domain of this function?