A shopkeeper buys mangoes at the rate of 5 a rupee and sells them at 4 a rupee. Find his net profit or loss percent?  Options:  A) 33 1/8 %  B) 33 7/3 %  C) 33 1/3 %  D) 25 %  E) 34 1/3 %
The total number of mangoes bought by the shopkeeper be 20.   If he buys 5 a rupee, his CP = 4   He selling at 4 a rupee, his SP = 5   Profit = SP - CP = 5 - 4= 
<gadget id="calculator">5 - 4</gadget>
<output>1</output>
1   Profit Percent= 1/4 * 100= 
<gadget id="calculator">1/4 * 100</gadget>
<output>25</output>
25 %   Answer: 25 %
<result>D</result>
A shopkeeper buys mangoes at the rate of 5 a rupee and sells them at 4 a rupee. Find his net profit or loss percent?