Task: Question Answering
Input (English): Problem: a and b together can do a piece of work in 1 days. if a alone can do the same work in 20 days, then b alone can do the same work in ?
Options: a. 0.35 days, b. 0.45 days, c. 0.55 days, d. 0.25 days, e. 0.95 days
Output (English): e