Question

If the mean of five values is 10.4 and four of the values are 10, 12, 11, and 8, then the fifth value is:


a.
12


b.
10


c.
11


d.
13

Answer 1

Answer:

c.11

Explanation:

Let the fifth value be x

ATQ,

$\frac{10+11+12+8+x}{5}$=10.4

41+x= 52

x=52-41

x=11