2025 · Q51
Two trains X and Y are travelling in the same direction. [Exact speeds and times could not be fully verified] What is the length of train Y?
Elementary MathematicsTime, Speed and Distance
- A80 m
- B100 m
- C120 m
- D150 m
Explanation
The stem concerns two trains X,Y moving in the same direction, but speeds and times could not be recovered (options 80/100/120/150 m). The stored key B (100 m) agrees with the published coaching key (PW, CDS 2 2025 Set A). Note: key disputed - independent verification inconclusive.