Question
The length of a plot is three times its breadth. A
playground measuring 216 square metres occupies half of the total area of the plot. What is the length of the plot?Solution
Using formula, Area = lb, Let breadth of plot = x metre Length = 3x metre According to question, ⇒ 3x2/2 = 216 ⇒ x2 = (216 x 2)/3 = 144 ⇒ x = 12 metre Therefore, length = 3 x 12 = 36 metre
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