A clock was exactly on time at noon on Monday. At 2 P.M. on Wednesday, it was 25 seconds slow. At that same rate, how much did it lose in half hour?

Calculate the difference between 12 noon on Monday and 2 PM on Wednesday. Then set up a proportion.

To calculate how much the clock lost in half an hour, we need to determine the rate at which it was losing time.

We know that the clock was on time at noon on Monday and was 25 seconds slow at 2 P.M. on Wednesday. Therefore, it took a total of 2 days (48 hours) for the clock to lose 25 seconds.

So, to find the rate of time loss, we divide 25 seconds by 48 hours:

Rate of time loss = 25 seconds / 48 hours

Now, we can find how much the clock lost in half an hour by using the same rate:

Time lost in half an hour = Rate of time loss * Time duration

Since the time duration is half an hour (0.5 hours), we can substitute the values into the equation:

Time lost in half an hour = (25 seconds / 48 hours) * 0.5 hours

Solving this equation will give us the answer to how much the clock lost in half an hour.