JAMIA 2026 — Reasoning PYQ

1. Find the Relative Speed:

When two objects move in the same direction, their relative speed is calculated by subtracting the slower speed from the faster speed.

$$\text{Relative Speed}=\text{Speed of train}-\text{Speed of man}$$

$$\text{Relative Speed}=60\text{ km/h}-6\text{ km/h}=54\text{ km/h}$$

2. Convert Speed from km/h to m/s:

Since the time is given in seconds and the options are in meters, we need to convert the relative speed into meters per second ($\text{m/s}$) by multiplying it by $\frac{5}{18}$.

$$\text{Speed in m/s}=54\times \frac{5}{18}$$

$$\text{Speed in m/s}=3\times 5=15\text{ m/s}$$

3. Calculate the Length of the Train:

When a train crosses a moving man, the total distance covered is equal to the length of the train.

$$\text{Distance (Length of Train)}=\text{Relative Speed}\times \text{Time}$$

$$\text{Length of Train}=15\text{ m/s}\times 15\text{ seconds}$$

$$\text{Length of Train}=225\text{ m}$$

Correct Answer

The correct option is (a) 225 m.