Subject: General Aptitude · Chapter: Area · Exam: 2009 · Marks: · Difficulty:
The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is 7803 sq. metres, What is the breadth of the rectangular plot?
(a)51 m
(b)88 m
(c)104 m
(d)153 m
(e)None of these
Answer
Answer (as printed):
Explanation
Let the breadth of the plot be $x$ metres. Then, length of the plot $=(3 x)$ meters. $$\begin{aligned} x \times 3 x=7803 & \Rightarrow 3 x^{2}=7803 \Rightarrow x^{2}=2601 \\ & \Rightarrow x=\sqrt{2601}=51 \mathrm{m} \end{aligned}$$