Subject: General Aptitude · Chapter: Profit and Loss · Exam: · Marks: · Difficulty:
Albert buys 4 horses and 9 cows for ₹ 13,400. If he sells the horses at 10\% profit and the cows at 20\% profit, then he earns a total profit of ₹ 1880. The cost of a horse is
(a)₹ 1000
(b)₹ 2000
(c)₹ 2500
(d)₹ 3000
Answer
Answer (as printed): B
Explanation
Let C.P. of each horse be ₹ $x$ and C.P. of each cow be ₹ $y$. Then, $4 x+9 y=13400$. ...(i) And, $10 \%$ of $4 x+20 \%$ of $9 y=1880$ $$\Rightarrow \frac{2}{5} x+\frac{9}{5} y=1880 \Rightarrow 2 x+9 y=9400$$ Solving (i) and (ii), we get : $x=2000$ and $y=600$. ∴ Cost price of each horse $=₹ 2000$.
Explanation as extracted from the printed page; notation may be imperfect.