Question : Directions: In the following question, select the one which is different from the other three alternatives.
Option 1: 101
Option 2: 121
Option 3: 111
Option 4: 131
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Correct Answer: 121
Solution : Let's check the options –
First option:
101; This is not a perfect square.
Second option:
121; This is a perfect square.
Third option:
111; This is not a perfect square.
Fourth option:
131; This is not a perfect square.
So, the second option is different from the other three options as 121 is a perfect square. Hence, the second option is correct.
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