exam Maths Puzzle Numerical Ability

division

x^3 - 1
----------
x+1

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exam Other Question

Geometry. The area of a rectangle of length x is given by 3x(squared)+ 5x. Find the width of the rectangle.

thanks the distance between two parallel chords of length 32cm and 24cm in a circle of radius 20cm is?
a)4 or 28 b) 3 or 21 c) 2 or 14 d) 1 or 7