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Question


In Roman numerals 'X' can be subtracted only from  _____ and _____.


Options:
A .   I, V
B .   L, C
C .   L, D
D .   I, L
Answer: Option B
:
B

In the Roman numeral system, 'X' can be subtracted from L and C only. (L= 50) and (C = 100) For example:


XL = 50 - 10 = 40 
XC = 100 -10 = 90
We can not write XD or XM.



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