Rubina started her journey by car at 16:50 hours and finished at 21:15 hours on the same day. The time taken in completing the journey is :

The correct option is 4 hours 25 minutes.

Step-by-step Explanation:

Step 1: Identify the start time and finish time of the journey.
Start time = 16:50 hours
Finish time = 21:15 hours

Step 2: Calculate the time taken to reach the next full hour from the start time.
The next full hour after 16:50 is 17:00.
Time from 16:50 to 17:00 = 60 minutes - 50 minutes = 10 minutes.

Step 3: Calculate the duration between the full hours.
Time from 17:00 to 21:00 = 21 - 17 = 4 hours.

Step 4: Add the remaining minutes after 21:00 to the finish time.
Time from 21:00 to 21:15 = 15 minutes.

Step 5: Total the hours and minutes.
Total time = 4 hours + (10 minutes + 15 minutes)
Total time = 4 hours + 25 minutes = 4 hours 25 minutes.

Thus, the time taken by Rubina to complete her journey is 4 hours 25 minutes.