ABC26GN4434 · Area
Subject: General Aptitude · Chapter: Area · Exam: 2008 · Marks: · Difficulty:
What will be the area of 4 metre high wall on all four sides of a rectangular hall having perimeter 64 m?
(a)$256 \mathrm{m}^{2}$
(b)$328 \mathrm{m}^{2}$
(c)$384 \mathrm{m}^{2}$
(d)Cannot be determined None of these
Answer
Explanation
Perimeter $=64 \mathrm{m} \Rightarrow 2(l+b)=64$. $$\therefore \quad \text { Area of } 4 \text { walls }=2(l+b) \times h=(64 \times 4) \mathrm{m}^{2}=256 \mathrm{m}^{2} .$$
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