A fruit seller sells mangoes at the rate of Rs.5 per kg and thereby loses 20%. At what price per kg, he should have sold them to make a profit of 5%  Choose the correct option.
A) Rs 6.56
B) Rs 9.56
C) Rs 10.56
D) Rs 11.56
E) None of these
Explanation:   80 : 5 = 105 : x   x= (5×105/80)   = Rs 6.56   Option Rs 6.56
<result>A</result>
A fruit seller sells mangoes at the rate of Rs.5 per kg and thereby loses 20%. At what price per kg, he should have sold them to make a profit of 5%