Question

The arthmetic mean of 7, 9, 11, 13, x, 21 is 13, find value of x

Answer 1

Answer:

Mean = stigma x / n

Step-by-step explanation:

Mean = 7+9+11+13+x+21/6

=61+x/6=13

=61+x=78

=x=78-61

x=17

Answer 2

Answer:

Here, medium=7+9+11+13+x+21/6=13

»61+x/6=13

»61+x=78

»x=78-61

»x=17

Therefore, x=17