Tick (✓) the correct answer:


Tick (✓) the correct answer:

In the pie chart representing the percentages of students having interest in reading various kinds of books, the central angle of the sector representing students reading novels is 81°. What is the percentage of students interested in reading novels?

(a) 15%

(b) 18%

(c) $22 \frac{1}{2} \%$

(d) $27 \frac{1}{2} \%$



(c) $22 \frac{1}{2} \%$

Let the required percentage be $x$. Then we have :

$\left(\frac{x}{100} \times 360\right)=81$

$\Rightarrow \frac{360 x}{100}=81$

$\Rightarrow x=\left(81 \times \frac{100}{360}\right)$

$\Rightarrow x=\frac{45}{2}$

$\Rightarrow x=22 \frac{1}{2}$

Hence, the percentage of students who are interested in reading novels is $22 \frac{1}{2} \%$.

Leave a comment


Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now