Task: Question Answering
Input (English): Problem: joe ’ s average ( arithmetic mean ) test score across 4 equally weighted tests was 70. he was allowed to drop his lowest score. after doing so, his average test score improved to 75. what is the lowest test score that was dropped ?
Options: a. 20, b. 25, c. 55, d. 65, e. 80
Output (English): c