The ratio of the loudness of Lala’s earphones to the loudness of Polina’s

Question

earphones to the loudness of Goffy’s earphones is 6 : 5: 3, respectively.
If Polina’s earphones have a loudness of 90 decibels, find the total
loudness of all three earphones.

Answer 1

90/5 = 18, so
6:5:3 = 108:90:54
now finish it off

Answer 2

252 decibles

Answer 3

252