The ratio of the loudness of lala's earphones to the loudness of polina's earphones to the loudness of goffy's earphones is 6:5:3. if polina's earphones have a loudness of 420 decibels, find the total loudness of all three earphones.

Let:

Lala be l

Polina be P

Goffy be G

the respective ratio is 6:5:3

Given that Polina's loudness is 420 decibels then the total loudness will be calculated as follows:

Total ratio=6+5+3=14

hence total loudness will be:

14/5*420

=1,176 decibels