exam Maths Puzzle Numerical Ability

A garden area is 30ft long and 20ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft2, what is the width of the path?

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exam Other Question

What is the equation of the line passing through the point (2,1) and perpendicular to the line with the equation 3x-6y=1? find the equation of the line given two points in the standard line.
#55 (-1,2) and (2.3). Please help me with this equation not sure how to solve.
Thanks!!