Three runners run on a circular track of length $5 \text{ km}$. They start from the same point, at the same time and in the same direction at speeds of $2.5 \text{ km/h}$, $3 \text{ km/h}$ and $2 \text{ km/h}$ respectively. After how many hours will they all meet for the first time at the starting point?

Options:

• A: $10 \text{ hours}$
• B: $15 \text{ hours}$
• C: $20 \text{ hours}$
• D: $30 \text{ hours}$

Related Practice Questions:

• Which of the following artifacts, extensively found at Burzahom and Gufkral, specifically indicates that the Neolithic inhabitants of Kashmir practiced sewing animal skins for clothing to survive the harsh winters?
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