How do write 49 in roman numerals?

Answer 1

IL

This is because I is 1 and L is 50. When a letter with a smaller value is placed just in front of a letter with a larger value, the small value must be subtracted from the larger value. So, 50-1 = 49.

Wrong

Corect Answer is = XLIX

and the reason is :-

There can be only one subtracted numeral, so we can't write IIX for 8. Only I, X, and C can stand before a larger numeral to subtract from it, and they can't stand in front of numerals more than ten times their value; IX for 9 is fine, but we can't write IL for 49 or IM for 1,999 for that we have to write XLIX or MCMXCIX.