Beat Frequency

BuBbLeS01

1. The problem statement, all variables and given/known data
A xylophone has a set of vibrating bars. A bar with a frequency of 343 Hz is struck. A very short time later, a second bar is also sounded, and one hears the volume of the xylophone increase and decrease 5 times each second (called beats). What are the possible frequencies of the second bar (in Hz)? Determine if the following frequencies is correct or incorrect.
A. 353
B. 338
C. 333
D. 348
E. 349


2. Relevant equations



3. The attempt at a solution
How do I figure this out???
A.
B.
C.
D.
E.

BuBbLeS01

Nevermind I got it..a lot easier then I was making it hehe.