Question

Mid-point of the line joining the points $(-1,2,3)$ and $(2,-1,3)$ is

• A. $(1,1,6)$
• B. $\left(\frac{1}{2},\frac{1}{2},3\right)$
• C. $(3,-3,0)$
• D. $\left(\frac{1}{3},\frac{1}{3},2\right)$

Answer 1

Answer: (B)

Mid-points $\left(\frac{-1+2}{2},\frac{2-1}{2},\frac{3+3}{2}\right)$
$=\left(\frac{1}{2},\frac{1}{2},3\right)$.