Question

A man buys lemons at $3$ for Rs. $5$ and an equation number at $2$ for Rs. $4$. He mixed them and sells at $5$ for Rs. $9$ . Find his gain or loss

Answer 1

The cost of $3$ lemons in the first case is $5$

The cost of $1$ lemon in the first case is $\frac{5}{3}=1.66$

The cost of $2$ lemons in second case is $4$

The cost of $1$ lemon in second case is $\frac{4}{2}=2$

So the average cost of $1$ lemon is $\frac{1.66+2}{2}=1.83$

The cost of $5$ lemons after mixing is $9$

The cost of $1$ lemon is $\frac{9}{5}=1.8$

Since there is decrease in the cost of lemon ,so it is LOSS

LOSS=$1.83-1.8=0.03$