exam Maths Puzzle Numerical Ability

the length of a rectangular lot is 5 m longer than the width. The amount of fencing required is 54 m . Find the dimensions of the lot.

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exam Other Question

Simplify:
sqrt[49x^12y^4z^8]
Diameter AB of circle o is 21 inches. Line AB is extended through B to a point C and tangent CD is drawn, meeting the circle at D. CD is 6 inches longer than BC.

a) Let x represent BC. Express CD and CA in terms of x.

B) Find BC