Question

As for other disagreeable sounds, a mechanical hammer is giving a sharp rap to the head of a bolt at a rate of 12.5 times per second. To within 4%, how many harmonics do you hear in your sensitive region of 3000 to 4500 Hz? (Round off your answer to the nearest integer.)

Answer 1

Nvm I just got it.

Answer 2

it's 120, one of those dumbass questions where you have to understand the wording and the solution is really stupid.