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Question
XXIII + XXVI = ______
XXIII + XXVI = ______
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Solution
The correct option is D XLIX
Before adding XXIII and XXVI, we need to convert these to Hindu- Arabic numerals.
XXIII = 10 + 10 + 1 + 1 + 1= 23
XXVI = 10 + 10 + 5 + 1 = 26
Thus, XXIII + XXVI = 23 + 26 = 49.
But, 49 = 40 + 9
= (50 - 10 ) + (10 - 1 )
= XL + IX
= XLIX.
Therefore, XXIII + XXVI = XLIX.
Before adding XXIII and XXVI, we need to convert these to Hindu- Arabic numerals.
XXIII = 10 + 10 + 1 + 1 + 1= 23
XXVI = 10 + 10 + 5 + 1 = 26
Thus, XXIII + XXVI = 23 + 26 = 49.
But, 49 = 40 + 9
= (50 - 10 ) + (10 - 1 )
= XL + IX
= XLIX.
Therefore, XXIII + XXVI = XLIX.
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