Question

which of the following is a valid Roman number? a). llll. b) VVV. c) XXX. d) LL ​

Answer 1

c) XXX

XXX is a valid Roman number.

Step-by-step explanation:

• Roman numbers were invented by the Romans thousands of years ago. Then it was used by the Europeans.

• Roman numbers contain symbols such as I, V, X, L, C, D and M.

• The value of I is 1, of V is 5, of X is 10, of L is 50, of C = 100, of D is 500 and of M is 1000.

• The Roman numbers from 1 to 10 are I, II, III, IV, V, VI, VII, VIII, IX and X.

• The Roman numbers from 11 to 20 are XI, XII, XIII, XIV, XV, XVI, XVII, XVIII, XIX and XX.

• Here, XXX means 30 and thus XXX is a valid number.

• VVV and LL do not exist in Roman numbers. Though IIII = 4 in many Roman numeral clocks, but is not used widely.

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