Question

Find the three arithmetic means between -5 and -25.
A. -10, -15, -20
B. -9, -15, -19
C. -8, -14, -23
D. -10, -20, -24

Answer 1

so when we need to find the arithmetic means just add 2 numbers which should be the last and first and then divide by 2

Answer 2

so -5 + ( -25) / 2 = ??/