In an examination, 96\% of students passed and 500 students failed. How many students did appear at the examination?
(a)14000
(b)12500
(c)12000
(d)13500
Answer
Answer (as printed): B
Explanation
Let number of students who appeared at the examination be $x$ Passed percentage = 96\% Failed percentage = 4\% According to given information we get Unsuccessful students ⇒ 4\% $$\begin{aligned} & \therefore 4 \% \text { of } x=500 \\ & \Rightarrow\left(\frac{x \times 4}{100}\right)=500 \\ & \Rightarrow x=\left(\frac{500 \times 100}{4}\right)=12500 \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.