Basic Symbol Numeral System

Directions for questions 51 to 53: Answer the questions on the basis of the information given below.

The seven basic symbols in a certain numeral system and their respective values are as follows: $\text{I} = 1, \text{V} = 5, \text{X} = 10, \text{L} = 50, \text{C} = 100, \text{D} = 500 \text{ and } \text{M} = 1000$

In general, the symbols in the numeral system are read from left to right, starting with the symbol representing the largest value; the same symbol cannot occur continuously more than three times; the value of the numeral is the sum of the values of the symbols. For example, $\text{XXVII} = 10 + 10 + 5 + 1 + 1 = 27$.

An exception to the left-to-right reading occurs when a symbol is followed immediately by a symbol of greater value; then the smaller value is subtracted from the larger. For example, $\text{XLVI} = (50 - 10) + 5 + 1 = 46$.

The value of the numeral MDCCLXXXVII is

The value of the numeral MCMXCIX is

Which of the following represent the numeral for 1995? I. MCMLXXV II. MCMXCV III. MVD IV. MVM