Task: Question Answering
Input (English): Problem: the cost of a one - family home was $ 120,000 in 1980. in 1988, the price had increased to $ 180,000. what was the percent increase in the cost of the home ?
Options: a. 60 %, b. 50 %, c. 55 %, d. 40 %, e. 33.3 %
Output (English): b