To determine the speed of A, we can use the formula for speed, which is defined as distance divided by time:
Speed = Distance / Time
In this case, A beats B by 25 meters in a 500-meter race, which means A's distance is 500 meters and B's distance is 500 - 25 = 475 meters.
A also beats B by 5 seconds, so we can say that A's time is 5 seconds less than B's time.
Let's assume B's time for the race is T seconds. Then A's time would be T - 5 seconds.
Now we can calculate the speed of A:
Speed of A = Distance / Time = 500 meters / (T - 5 seconds)
Please note that we need the value of B's time (T) to calculate the specific speed of A.