Question

The average of X,Y and Z is 14.Twice the sum of Y and Z is 30.Then what is the value of X.​

Answer 1

Answer:

27

Step-by-step explanation:

(x+y+z)/3 = 14

x+y+z = 42 —(1)

from the proposition: 2(y+z) = 30

y+z = 15

from (1) x+y+z = 42

x+15 =42

x = 27