All questions of Fraction for UGC NET Exam

**Explanation:**

To find the decimal of an hour that represents a second, we need to divide 1 hour by the number of seconds in an hour.

**Step 1: Convert 1 hour to seconds**

We know that there are 60 minutes in an hour and 60 seconds in a minute. So, to convert 1 hour to seconds, we multiply:

1 hour * 60 minutes/hour * 60 seconds/minute = 3600 seconds

**Step 2: Divide 1 by the number of seconds in an hour**

Now, we divide 1 by the number of seconds in an hour:

1 / 3600 = 0.000277778

**Step 3: Round the decimal to the nearest five decimal places**

Since the options provided are rounded to five decimal places, we need to round the decimal to match the options.

0.000277778 rounded to five decimal places is 0.00027

Therefore, the decimal of an hour that represents a second is 0.00027, which corresponds to option C.