Question

the arithmetic mean of x,x+3 x+6,x+9 and x+12 is 10 than find x 1 1 2. 2 3. 6 4.4​

Answer 1

Answer:

By definition,

Average=

5

x+(x+3)+(x+6)+(x+9)+(x+12)

=

5

5x+30

=x+6