Bobby's date of birth is ${19}^{th}$ September. Express the date in Roman numeral.

Q. Bobby's date of birth is ${19}^{th}$ September. Express the date in Roman system.

Q. Evan's mother's birthday is in January, but he forgot the date. To help him, his father gave him some clues. Help Evan find his mother's birth date.
1. It is a multiple of 7.
2. It is after 15.
4. In Roman numerals, this number is written using 2 different symbols.

Q. Why is the date 2 September 1945 important?

Q. Eva's mother's birthday is in December, but she has forgotten the date. To help her out, her father gave her some clues. Help Eva find her mother's birth date.
1. It is a multiple of 6.
2. It is before ${15}^{th}$ December.
3. In Roman numerals, this number is written using two symbols without repetition.

Q.

Which is greater: XIX or XXI?