Question : Directions: In the following question, select the one which is different from the other three alternatives.
Option 1: 512
Option 2: 625
Option 3: 1296
Option 4: 2401
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Correct Answer: 512
Solution : Let's check the options – First option: 512; 512 is not a square of any number. Second option: 625; 625 is the square of 25. Third option: 1296; 1296 is the square of 36. Fourth option: 2401; 2401 is the square of 49.
So, the first option is different from the other three options as 512 is not a perfect square. Hence, the first option is correct.
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