NIELIT 2023 Feb Scientist D | Section C | Question: 76

Question

The perimeter of a square plot is the same as that of a rectangular plot with sides $35 \mathrm{~m}$ and $15 \mathrm{~m}$. The side of the square plot is:

• A. $25 \mathrm{~m}$
• B. $20 \mathrm{~m}$
• C. $100 \mathrm{~m}$
• D. $50 \mathrm{~m}$

   

Answer 1

According to the given information:

perimeter of square =$4a$ where $a$ is side of square

perimeter of rectangle= $2(l+b)$ l=length ,b=breadth

$4a=2(l+b)\implies a=\frac{2(l+b)}{4}\implies a=\frac{2(35+15)}{4}\implies \frac{2*50}{4} \implies a=25$ m

Comments

Ans is A – 25 m

There is a small calculation mistake in the above solution as 35+15 is 50. So, (50*2)/4 = 25.

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updated.