SOLUTION: The average (arithmetic mean) of a, b, c and d is n. If a + b = 150, what is c + d ? A) a + b + c B) a + b + n C) 4n – 150 D) 4n + 150 E) 4n – 100

Algebra ->  Average -> SOLUTION: The average (arithmetic mean) of a, b, c and d is n. If a + b = 150, what is c + d ? A) a + b + c B) a + b + n C) 4n – 150 D) 4n + 150 E) 4n – 100      Log On


   



Question 252679: The average (arithmetic mean) of a, b, c and d is n. If a + b = 150,
what is c + d ?
A) a + b + c B) a + b + n C) 4n – 150 D) 4n + 150 E) 4n – 100

Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
Given, the average (arithmetic mean) of a, b, c and d is n
(a+b+c+d)/4 = n
If a+b = 150, then
(150+c+d) = 4n
c+d = 4n-150