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7.Profit and Loss
hard
Raman sells a machine for $Rs.\, 39$ lakh at a loss. Had he sold it for $Rs.\, 49$ lakh, his gain would nhave been three times the loss. What is the cost price of the machine? (in $Rs........lakh$)
A
$46.5$
B
$62$
C
$36.5$
D
$41.5$
Solution
Let $C.P$ of machine $=Rs. x$
If he sell at $₹39$ lakhs
Loss $=₹(x-39)$ lakhs
If $S.P$ $=₹ 49$ lakhs
Profit $=₹(49-x)$ lakhs
According to the $Qn \Rightarrow$ Profit $=3 \times$ loss $(49-x)=3(x-39)$
$49-x=3 x-117$
$4 x=166$
$x=\frac{166}{4}$
$x=41.5$ lakhs
Standard 13
Quantitative Aptitude