Question : The least number that should be subtracted from the number 32146 to make it a perfect square is:
Option 1: 305
Option 2: 105
Option 3: 605
Option 4: 205
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Correct Answer: 105
Solution :
We know the value of (180)
2
= 32400
Then, the least number subtracted from 32146 to make it perfect square = 32146 – (179)
2
= 32146 – 32041 = 105
Hence, the correct answer is 105.
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