Distance from Delhi to Mumbai is measured in:

Explanation:

The distance from Delhi to Mumbai is measured in kilometres (option B).

Reason:

The reason for measuring the distance between Delhi and Mumbai in kilometres is because it is a commonly used unit of measurement for long distances. Kilometres are a larger unit of measurement compared to centimetres and millimetres, making it more suitable for measuring the distance between two cities.

Advantages of using kilometres:

1. Convenience: Kilometres are widely used and understood by people around the world. It is an internationally recognized unit of measurement for distance.

2. Accuracy: Kilometres provide a more accurate representation of long distances compared to smaller units like centimetres or millimetres. Using smaller units for measuring such large distances would result in very large numbers, making it difficult to comprehend.

3. Standardization: Kilometres are part of the metric system, which is the most widely used system of measurement worldwide. It ensures consistency and ease of communication when discussing distances between two locations.

4. Practicality: Kilometres provide a practical and manageable unit of measurement for everyday use. It is easy to estimate distances in kilometres and convert them to other units if necessary.

5. Transportation: Kilometres are commonly used in transportation and navigation systems. Most road signs, maps, and GPS devices display distances in kilometres, making it convenient for travelers to understand the distance they need to cover.

Therefore, the distance from Delhi to Mumbai is measured in kilometres due to its convenience, accuracy, standardization, practicality, and widespread use in transportation.

Convert into cetimetres