Subject: General Aptitude · Chapter: Profit and Loss · Exam: 2007 · Marks: · Difficulty:
An increase of ₹ 3 in the selling price of an article turns a loss of $7 \frac{1}{2} \%$ into a gain of $7 \frac{1}{2} \%$. The cost price (in ₹) of the article is
(a)10
(b)15
(c)20
(d)25
Answer
Answer (as printed): C
Explanation
Let C.P. be ₹ $x$. Then, $107 \frac{1}{2} \%$ of $x-92 \frac{1}{2} \%$ of $x=3$ $$\Rightarrow \frac{215}{200} x-\frac{185}{200} x=3 \Rightarrow \frac{30 x}{200}=3 \Rightarrow x=20 .$$
Explanation as extracted from the printed page; notation may be imperfect.