Task: Question Answering
Input (English): Problem: a gambler has won 40 % of his 20 poker games for the week so far. if, all of a sudden, his luck changes and he begins winning 80 % of the time, how many more games must he play to end up winning 60 % of all his games for the week ?
Options: a. 20, b. 25, c. 30, d. 35, e. 40
Output (English): a