Task: Question Answering
Input (English): Problem: sandy buys an old scooter for $ 900 and spends $ 300 on its repairs. if sandy sells the scooter for $ 1500, what is the gain percent ?
Options: a. 10 %, b. 15 %, c. 20 %, d. 25 %, e. 30 %
Output (English): d