The ratio of the loudness of lana’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.

Total loudness of earphones will be 11176 decibels

Explanation:

We have given the ratio of loudness of earphones of Lana's , Polina's and Goffy's are 6:5:3

Let the loudness is multiple of x

So ratio will become 6x:5x:3x

So total = 6x+5x+3x = 14x

As it is given Polina's earphone loudness is 420 decibels

So

x = 84 decibels

So total loudness of earphones will be = 14×84 = 1176 decibels  

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