In a plane, line X is perpendicular to line Y and parallel to line Z; line U is perpendicular to both lines V and W; line X is perpendicular to line V.
Which one of the following statements is correct?
A
Z, U and W are parallel.
B
X, V and Y are parallel.
C
Z, V and U are all perpendicular to W.
D
Y, V and W are parallel.
Correct Answer: Option D
Explanation
To solve this elegantly, we look for connections using 'common friends' (reference lines), just like in the 'Transitive Sequencing' PYQs [48].\n\n1. **First Connection (Using Line U):**\n The question says line U is perpendicular to V, and line U is also perpendicular to W. Since V and W are perpendicular to the same line (U), they must be parallel to each other. \n *Result: V || W*\n\n2. **Second Connection (Using Line X):**\n The question says line X is perpendicular to V, and line X is also perpendicular to Y. Since V and Y are perpendicular to the same line (X), they must be parallel to each other.\n *Result: V || Y*\n\n3. **Final Chain:**\n Now we combine the results. We know Y is parallel to V, and V is parallel to W. Therefore, all three are parallel.\n *Chain: Y || V || W*\n\nLooking at option (D), it states 'Y, V and W are parallel', which perfectly matches our chain.