A car driver knows four different routes from Delhi to Amritsar. From Amritsar to Pathankot, he knows three different routes and from Pathankot to Jammu he knows two different routes. How many routes does he know from Delhi to Jammu?

Options

A. 4
B. 8
C. 12
D. 24

Explanation

To find the total number of routes the car driver knows from Delhi to Jammu, we will multiply the number of routes he knows for each segment of the journey.

1. **Identify the number of routes for each segment:**
- From Delhi to Amritsar: 4 routes
- From Amritsar to Pathankot: 3 routes
- From Pathankot to Jammu: 2 routes

2. **Calculate the total routes:**
To find the total number of routes from Delhi to Jammu, we multiply the number of routes for each segment:
\[ \text{Total Routes} = (\text{Routes from Delhi to Amritsar}) \times (\text{Routes from Amritsar to Pathankot}) \times (\text{Routes from Pathankot to Jammu}) \]
\[ \text{Total Routes} = 4 \times 3 \times 2 \]

3. **Perform the multiplication:**
- First, multiply 4 and 3:
\[ 4 \times 3 = 12 \]
- Then, multiply the result by 2:
\[ 12 \times 2 = 24 \]

4. **Conclusion:**
The total number of routes the car driver knows from Delhi to Jammu is **24**.