If One-Third of the Members of a Symphony Orchestra Are

Multiple Choice

If one-third of the members of a symphony orchestra are absent because of head colds,thus reducing the overall intensity of sound by 33%,what will be the reduction in the decibel level?

A) 15 dB
B) 17 dB
C) 11 dB
D) 1.8 dB
E) 4.1 dB