alleryA rectangular plot has its length 3 m more than its width, and its area is 54 m². Find its width.
A6 m
B8 m
C7 m
D9 m
Answer & Solution
Correct answer: A. 6 m
Let width = x.
Then x(x + 3) = 54 ⇒ x² + 3x − 54 = 0. Factor: (x + 9)(x − 6) = 0. Reject negative root. Width = 6 m.
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