Question

Find the arithmetic mean between 4 and 20

Answer 1

Answer:

5,6,7,8,9,10,11,12,13,14,15

Answer 2

Step-by-step explanation:

$We \: know \: t hat,$

$Arithmetic \: mean = 2b = a + c$

$Here,$

$a = 4 \: \: \: \: and \: \: \: \: c = 20$

$According \: to \: the \: f ormula$

$2b = 4 + 20$

$b = \frac{24}{2}$

$\boxed{b = 12}$

Hence the arithmetic mean is 12