Subject: General Aptitude · Chapter: Profit and Loss · Exam: 2006 · Marks: · Difficulty:
Padam purchased 30 kg of rice at the rate of ₹ 17.50 per kg and another 30 kg rice at a certain rate. He mixed the two and sold the entire quantity at the rate of ₹ 18.60 per kg and made 20\% overall profit. At what price per kg did he purchase the lot of another 30 kg rice?
(a)₹ 12.50
(b)₹ 13.50
(c)₹ 14.50
(d)₹ 15.50
(e)None of these
Answer
Answer (as printed): B
Explanation
Let the required price per kg be ₹ $x$. Then, C.P. of 60 kg rice $=₹(30 \times 17.50+30 \times x)=₹(525+30 x)$. S.P. of 60 kg rice $=₹(60 \times 18.60)=₹ 1116$. $\therefore \frac{1116-(525+30 x)}{525+30 x} \times 100=20 \Leftrightarrow \frac{591-30 x}{525+30 x}=\frac{1}{5}$
Explanation as extracted from the printed page; notation may be imperfect.