Question

if mean of 27,25,23,x+2,x-2,17,15 and 13 is 20, find the value of x.​

Answer 1

Answer:

X= -35/2

Step-by-step explanation:

[27+25+23+17+15+13+(x+2)+(x-2)]/8=20

(195+2x)/8=20

195+2x=20×8

2x=160-195

2x=-35

x=(-35/2)