A shopkeeper buys mangoes at the rate of 4 a rupee and sells them at 3 a rupee. Find his net profit or loss percent?	Choose the correct option.
A) 33 1/7 %
B) 33 9/3 %
C) 33 1/3 %
D) 39 1/3 %
E) 23 1/3 %
The total number of mangoes bought by the shopkeeper be 12.   If he buys 4 a rupee, his 33 1/3 %P = 3   He selling at 3 a rupee, his SP = 4   Profit = SP - 33 1/3 %P = 4 - 3= 
<gadget id="calculator">4 - 3</gadget>
<output>1</output>
1   Profit Percent= 1/3 * 100 = 33 1/3 %   Answer:33 1/3 %
<result>C</result>
A shopkeeper buys mangoes at the rate of 4 a rupee and sells them at 3 a rupee. Find his net profit or loss percent?