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Select the option that will fill in the blank and complete the series. XII, V, X, ____, VIII, CXXV
Question

Select the option that will fill in the blank and complete the series.
XII, V, X, ____, VIII, CXXV

A.

XXVI

B.

XII

C.

XXV

D.

XX

Correct option is C

Given: XII, V, X, ____, VIII, CXXV
Logic: The given series is represented in the Roman numerals. there is two series in this -
Series: XII (12), V (5), X (10), ____, VIII (8), CXXV (125)
1st series: 12, 10 , 8,6...
XII (12) - 2 = X (10); X(10) - 2 = VIII (8)
2nd series: 51= 5 , 52= 25, 53= 125 
V (5) ×\times 5 = XXV (25); XXV (25)  5 = CXXV (125)
So, XXV is the missing term in the series.
Thus, the correct answer is (c).

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