Q41
The average number of students qualified in the examination from Schools C and D is what percent of the average number of students appeared for the examination from the same school? ( round off to 2 digits after decimal).
A.
58.62%
B.
73.91%
AnswerC.
62.58%
D.
58.96%
E.
None of these
Answer: Option B
Solution
Answer: Option B
Solution:
Average number of students qualified from C and DAverage number of students appeared from C and D
\begin{aligned} & = \frac{1}{2}\left(3250+2500\right) \\ & = \frac{5750}{2} \\ & = 2875 \\ & \therefore \text{ Required %} \\ & = \left(\frac{2125}{2875}\times100\right)\% \\ & = \left(\frac{85}{115}\times100\right)\% \\ & = \frac{1700}{23}\% \\ & = 73.91\% \\\end{aligned}