Question

The ratio, in which yz-plane divides the line joining (2, 4, 5) and (3, 5, 7), is

• A. –2 : 3
• B. 2 : 3
• C. 3 : 2
• D. –3 : 2

Answer 1

Answer: (A)

–2 : 3

Answer 2

Let the ratio be λ : 1.

x-coordinate is $\frac { 3 \lambda + 2 } { \lambda + 1 }$ = 0

⇒ λ = –2/3