The total number of late departures of trains is

Options

A. 85
B. 87
C. 90
D. 150

Answer

To find the total number of late departures of trains, we need to add the number of trains that had different delays. Let's break it down step by step:

### Step-by-Step Solution:

1. **Identify the categories of delays:**
- 0 to 30 minutes delay
- 30 to 60 minutes delay
- More than 60 minutes delay

2. **Find the number of trains in each category:**
- For the 0 to 30 minutes delay, there are **82 trains**.
- For the 30 to 60 minutes delay, there are **5 trains**.
- For the more than 60 minutes delay, there are **3 trains**.

3. **Add the number of trains from all categories:**
- Total late departures = (Number of trains with 0 to 30 minutes delay) + (Number of trains with 30 to 60 minutes delay) + (Number of trains with more than 60 minutes delay)
- Total late departures = 82 + 5 + 3

4. **Calculate the total:**
- Total late departures = 82 + 5 + 3 = **90 trains**

5. **Conclusion:**
- The total number of late departures of trains is **90**.