Question

If the arithmetic mean of 7 5 13 x and a be 10 then the value of x is

Answer 1

Given
Mean=10
The numbers=7,5,13,x

Mean=7+5+13+x/4
10=25+x/4
10*4=25+x
40-25=x
15=x

Answer 2

Answer:I guess the question is

7,5,13,x and 9

Step-by-step explanation:

7+5+13+x+9/5=10

34+x/5=10

34+x=50

x=16