Answer: The left page number is 192 and the right page number is 193.
Step-by-step explanation: let's call the left page number x and the right page number x+1. According to the given information, their sum is 385.
So, we can set up the equation x + (x+1) = 385.
Simplifying the equation, we get 2x + 1 = 385.
Subtracting 1 from both sides, we have 2x = 384.
Dividing both sides by 2, we find x = 192.
Therefore, the left page number is 192 and the right page number is 193.