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Q.

Find 3969 by the long division method.


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a

25

b

63

c

82

d

45

answer is B.

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Detailed Solution

Concept- given numbers in pairs, starting from the far right. Consider the maximum number of squares whose squares are slightly smaller than the first pair. Subtract the product of the divisor and the quotient from the first pair. Move the next pair to the right of the remaining pairs.
Finding the square root of 3969, we get:
seoHence, the correct answer is option 2) .
 
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