Harish started his journey at 18:40 and finished at 22:20. the time taken in completing the journey is

Options

A. 3 h 20 min
B. 3h 40 min
C. 3 h 80 min
D. 4 h 40 min

Explanation

To find the time taken by Harish for his journey, we can follow these steps:

### Step 1: Convert the start and end times into a 24-hour format.
- Start time: 18:40 (which is 18 hours and 40 minutes)
- End time: 22:20 (which is 22 hours and 20 minutes)

### Step 2: Calculate the total time taken for the journey.
- We need to subtract the start time from the end time.
- End time: 22:20
- Start time: 18:40

### Step 3: Break down the subtraction into hours and minutes.
- First, subtract the hours:
- 22 hours - 18 hours = 4 hours
- Next, subtract the minutes:
- 20 minutes - 40 minutes = -20 minutes

### Step 4: Adjust the minutes.
- Since we cannot have negative minutes, we need to borrow 1 hour (which is 60 minutes) from the 4 hours.
- So, we take 1 hour from the 4 hours, leaving us with 3 hours, and add 60 minutes to the -20 minutes:
- -20 minutes + 60 minutes = 40 minutes

### Step 5: Combine the hours and minutes.
- After the adjustment, we have:
- 3 hours and 40 minutes

### Conclusion:
- The total time taken for Harish's journey is **3 hours and 40 minutes**.

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