529 is related to 23 following a certain logic. Following the same logic, 324 is related to 18. To which of the following is 625 related following the same logic?
(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /deleting /multiplying etc., to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
Correct Answer :
25
Solution :
The correct answer is 25.
Let us analyze the logic connecting the numbers in the given pairs:
First pair: 529 and 23
We observe that 529 is the square of 23:
Alternatively, the square root of 529 is 23:
Second pair: 324 and 18
Following the same logic, 324 is the square of 18:
Alternatively, the square root of 324 is 18:
Third pair: 625 and the required number
Applying the exact same rule to 625, we find the number whose square is 625:
Since , 625 is related to 25.
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