Answer the following questions using Roman Numerals.
1. Convert 53 into Roman Numerals \(=\)
2. Paaru converts \(400\) as \(\text{CCCC}\). Is it correct? If not, then correct it.
\(400 = \text{CCCC}\) \(=\)
\(400 =\)
3. How many minutes in 2 hour(s) in Roman Numerals?
4. How many centi meter in 5 meters in Roman Numerals?