# Why is the Voltage Gain 54 dB instead of 50 as stated in the problem?

Here I'm trying to find the overall voltage gain. I did everything correctly, except out of nowhere, the gain in dB was 54dB, not 50dB. I don't know why. Here's the solution:

And here's the figure (or problem statement)

Can someone explain why?

• Just looks like a typo. The professors who write textbooks and the grad students who proofread the problem sets at 3 AM are not infallible. – The Photon Sep 20 '16 at 17:33