If the arithmetic mean of 8, 4, x, 6, 2, 7 is 5, then the value of x is ________.
If the arithmetic mean of 8, 4, x, 6, 2, 7 is 5, then the value of x is 3.
Mean = (8+4+x+6+2+7)/6 = 5=> (27+x)/6 = 5=> 27+x = 30=> x = 3.