Task: Question Answering
Input (English): Problem: the balance of a trader weighs 10 % less than it should. still the trader marks up his goods to get an overall profit of 20 %. what is the mark up on the cost price ?
Options: a. 40 %, b. 8 %, c. 25 %, d. 16.66 %, e. 9 %
Output (English): b