Question

Which is more, 400 millimetres or 4 metres?

• A. 400 millimeters
• B. 4 meters
• C. Both are equal
• D. Cannot say

Answer 1

The correct option is B 4 meters

To convert a larger unit (m) to a smaller unit (mm) we multiply by the conversion factor.
Here convert 4m to mm

We know that 1m = 1000 mm
Therefore 4 m = 4 x 1000

= 4000 mm

Therefore 4000 mm i.e 4 m is greater than 400 mm.

Answer: option B. 4 m