Two persons Prabhat and Vinay are walking around a circular park of th...
Understanding the problem
The problem states that two persons, Prabhat and Vinay, are walking around a circular park of length 960 m. Prabhat walks at a rate of 80 m/min while Vinay walks at a rate of 60 m/min. Both of them start from the same starting point at the same time in the same direction. We need to determine when they will be together.
Approach
Since both Prabhat and Vinay are walking in the same direction, the relative speed between them is the difference in their walking speeds. In this case, the relative speed is 80 m/min - 60 m/min = 20 m/min.
To find the time when they will be together, we need to find the time it takes for them to cover a distance that is a multiple of the circumference of the circular park (960 m).
Calculating the time
To calculate the time, we divide the total distance covered (a multiple of the circumference) by the relative speed.
The time can be calculated using the formula:
Time = Distance / Speed
In this case, the distance covered is a multiple of the circumference, which is 960 m. Let's assume the time taken is 't' minutes.
So, the distance covered by Prabhat in 't' minutes = 80 * t m
The distance covered by Vinay in 't' minutes = 60 * t m
According to the problem, the distance covered by both of them should be a multiple of the circumference, i.e., 960 m.
Therefore, we have the equation:
80 * t - 60 * t = 960
Simplifying the equation:
20 * t = 960
t = 960 / 20
t = 48 minutes
Therefore, Prabhat and Vinay will be together after 48 minutes.
Conclusion
Both Prabhat and Vinay will be together after 48 minutes.