Instructions
In each of the following questions, select the related word/letters/number from the given alternatives.
Solution
Expression = 91 : ? :: 64 : 54
9 + 1 = 10
Similarly, 6 + 4 = 10
So, 5 + 4 = 9
Hence '?' should be some number whose sum of digits is 9.
Among the options, sum of digits of 63 = 6 + 3 = 9
=> Ans - (A)
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