A shopkeeper buys mangoes at the rate of 7 a rupee and sells them at 3 a rupee. Find his net profit or loss percent?
Choose the most appropriate option:
A) 33 4/3 % B) 33 1/7 % C) 400/7 % D) 32 1/3 % E) 33 2/3 %
The total number of mangoes bought by the shopkeeper be 21.   If he buys 7 a rupee, his 400/7 %P = 3   He selling at 3 a rupee, his SP = 7   Profit = SP - 400/7 %P = 7 - 3= 
<gadget id="calculator">7 - 3</gadget>
<output>4</output>
4   Profit Percent= 4/7 * 100 = 400/7 %   Answer:400/7 %
<result>C</result>
A shopkeeper buys mangoes at the rate of 7 a rupee and sells them at 3 a rupee. Find his net profit or loss percent?