Question : What the least value should be added to 2505 so that it becomes a perfect square?
Option 1: 5
Option 2: 20
Option 3: 70
Option 4: 96
Correct Answer: 96
Solution : 2505 + $x$ = perfect square The perfect square nearest to 2505 is 2601 = 51 2 $\therefore x$ = 2601 – 2505 = 96 Hence, the correct answer is 96.
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