Task: Question Answering
Input (English): Problem: a number x is multiplied by 3, and this product is then divided by 7. if the positive square root of the result of these two operations equals x, what is the value of x if x ≠ 0 ?
Options: a. 25 / 9, b. 3 / 7, c. 5 / 3, d. 3 / 5, e. 9 / 25
Output (English): b