Task: Question Answering
Input (English): Question: Find the value of x in 8.5 – { 5 ½ – [7 ½ + 2.8]/x}*4.25/(0.2)^2 = 306

 Option A: 3.2

 Option B: 3.4

 Option C: 3.5

 Option D: 4.1

 Option E: 4.2
Output (English): Option C