If the average arithmetic mean of 3x and 11 is a the of 4x

Last updated: 2/22/2023

If the average arithmetic mean of 3x and 11 is a the of 4x and 6 is b and the average of 5x and 7 is average C what is the average of a b and c in terms of x A x 2 B x 3 C 2x 4 D 4x 8