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प्रश्न
Find the number of digits in the square root of the following numbers (without any calculation).
144
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उत्तर
Since the number of digits in 144 is 3 (= n), which is odd.
Then its square root will have `((n + 1)/2)` digits.
Number of digits = `(3 + 1)/2`
= `4/2`
= 2
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