Question

A merchant mixes two varieties of rice, One costing $35$ per kg and another at $45$ per kg in the ratio of $3:2$. If he sells the mixed variety at $41.60$ per kg, Find his gain or loss percent.

Answer 1

$lettotalrice=5kg$

$5kg\text{fice}=195(35\times 3+45\times 2)$

$costof1kg\text{rice}=\frac{195}{5}=39$

$\begin{array}{cc}SP& =41.60\\ \text{Pratit}& =(41.60-39)=2.6\end{array}$

$Protit\%=\frac{2\cdot 6\times 100}{39}\times 100=6.6\%$