Question

How many decimetres are there in a decametre?

• A. 200
• B. 100
• C. 1000
• D. 400

Hint:

1 decametre = 100 decimetres.

Answer 1

The Correct Option is B

Step 1: Understanding the Metric System Conversion.
1 decametre (dam) is equal to 100 decimetres (dm), as 1 decametre is 10 meters and 1 decimetre is 0.1 meters. Therefore: \[ 1 \, \text{dam} = 100 \, \text{dm}. \] Step 2: Verifying the Options.

- Option (1): 200 is incorrect.
- Option (2): 100 is correct, as 1 decametre equals 100 decimetres.
- Option (3): 1000 is incorrect.
- Option (4): 400 is incorrect. Conclusion:
Therefore, the correct answer is (2) 100.