Question

How many cm are there in a metre?

• A. 100
• B. 10
• C. 80
• D. 1000

Hint:

Memorize the common metric prefixes: kilo- (1000), hecto- (100), deca- (10), deci- (1/10), centi- (1/100), milli- (1/1000).

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
The question asks for the conversion factor between centimetres and metres.
Step 2: Detailed Explanation
The metric system is based on powers of 10. The prefix "centi-" means one-hundredth (1/100).
This means that 1 centimetre (cm) is 1/100th of a metre.
Therefore, there are 100 centimetres in 1 metre.
\[ 1 \text{ metre} = 100 \text{ centimetres} \]