Question

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 90 decibels, find the total loudness of all three earphones.

Answer 1

252

Explanation:

sum of ratio=6+5+3=14

Total loudness=90/5 ×14=18×14=252