Question
The length of a plot is three times its breadth. A
playground measuring 150 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 = 150 ⇒ x2 = (150 x 2)/3 = 100 ⇒ x = 10 metre Therefore, length = 3 x 10 = 30 metre       Â
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