exam Maths Puzzle Numerical Ability

[(x^2-4)/(x^2+3x-10)] / [(x^2+5x+6)/(x^2+8x+5)]

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exam Other Question

the complement of an angle is 18 degrees more than 1/3 its supplement. find the measure of the angle. x=9
y=x+0.5z
z=x+y
a=x+y+z
a=?