By selling 175 pineapples, the gain is equal to the selling price of 50 pineapples. What is the gain percentage?
Let cost price of 1 pineapple = Rs. $$x$$ and selling price of 1 pineapple = Rs. $$y$$
=> Profit by selling 175 pineapples = Rs. $$175(y-x)$$
According to ques,
=> $$175(y-x)=50y$$
=> $$7y-7x=2y$$
=> $$7y-2y=5y=7x$$
=> $$\frac{y}{x}=\frac{7}{5}$$
Let $$y=7$$ and $$x=5$$
$$\therefore$$ Profit % = $$\frac{(y-x)}{x}\times100$$
= $$\frac{7-5}{5}\times100$$
= $$2\times20=40\%$$
=> Ans - (D)
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