Question

If mean of 5 observations x , x+2 , x+4 , x+6 , x+8 is 11. Find the value of x

Answer 1

$(x + x + 2 + x + 4 + x + 6 + x + 8 ) \div 5 = 11 \\ (5x + 20) \div 5 = 11 \\ 5x + 20 = 55 \\ 5x = 55 - 20 = 35 \\ x = 35 \div 5 = 7$

Answer 2

(x+x+2+x+4+x+6+x+8)/5=11, in next line we can plus the term of x and no., 5x+20=55,in next line 5x=55-20, in next line 5x=35 then x =35/5, the value of x is 7. Please mark it as a brainiest