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Ascending Order and Descending Order

XXV + XXXV = ...

Question

XXV + XXXV = ?

A

The Vignesh's method is correct.

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B

Gautam's method is correct.

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C

The method used by both of them are wrong.

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D

The method used by both of them are correct.

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Solution

The correct option is A
The Vignesh's method is correct.

In the Roman numerals X = 10, V = 5.
So, XXV = 10 + 10 + 5 = 25
XXXV = 10 + 10 + 10 + 5 = 35
XXV + XXXV = 25 + 35 = 60
60 = LX (In Roman numerals L= 50)
Therefore, XXV + XXXV = LX

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