Two trains start at the same time from two stations A and B and proceed towards each other at speeds of $45 \text{ km/h}$ and $v \text{ km/h}$ respectively. After crossing each other, they take $4 \text{ hours}$ and $9 \text{ hours}$ to reach their respective destinations. Find the value of $v$.

Options:

• A: $25 \text{ km/h}$
• B: $30 \text{ km/h}$
• C: $35 \text{ km/h}$
• D: $40 \text{ km/h}$

Related Practice Questions:

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