CUET Preparation Today
CUET
-- Mathematics - Section B1
Three-dimensional Geometry
The ratio, in which the yz-plane divides the line joining (2, 4, 5) and (3, 5, 7), is
–2 : 3
2 : 3
3 : 2
–3 : 2
Let the ratio be λ : 1.
x-coordinate is $\frac{3λ+2}{λ+1}= 0$ ⇒ λ = -2/3.
Hence (A) is the correct answer.