Instructions

In each of the following questions, select the related word/letters/number from the given alternatives.

Question 4

91 : ? :: 64 : 54

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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