A fruit merchant makes a profit of 25% by selling mangoes at a certain price. If he charges Re.1 more on each mango, he would gain 50%. At first the price of one mango was.

Original price of 1 mango =x Rs (let)

$\therefore$ C.P. of 1 mango=$\frac{100x}{125}$

$=\frac{4x}{5} $Rs.

Case II, According to question,

$x+1=\frac{4x}{5}\times \frac{150}{100}$

$\Rightarrow x+1= \frac{6x}{5} \Rightarrow \frac{6x}{5}-x=1$

$\Rightarrow \frac{x}{5}=1 \Rightarrow x=5$ Rs.

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