Task: Question Answering
Input (English): Problem: a fruit seller sells mangoes at the rate of rs. 12 per kg and thereby loses 10 %. at what price per kg, he should have sold them to make a profit of 15 % ?
Options: a. rs. 11.81, b. rs. 12, c. rs. 15.33, d. rs. 12.31, e. none
Output (English): c