Aptitude - Square Root and Cube Root - Discussion
Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 15)
15.
The square root of 64009 is:
Answer: Option
Explanation:
2|64009( 253
|4
|----------
45|240
|225
|----------
503| 1509
| 1509
|----------
| X
|----------
64009 = 253.
Discussion:
41 comments Page 5 of 5.
Monika pattnaik said:
1 decade ago
Ex- Take 64009.
Divide the no with two parts i.e 640 & 09.
As 9 is the last no, so it can be 3 or 7.
As 25^2 <640< 26^2.
Hence the no may be 253 0r 257 ( take the small number).
So 25*26=650..as 650>640. So we have to take the small number.
Hence the answer is 253.
Divide the no with two parts i.e 640 & 09.
As 9 is the last no, so it can be 3 or 7.
As 25^2 <640< 26^2.
Hence the no may be 253 0r 257 ( take the small number).
So 25*26=650..as 650>640. So we have to take the small number.
Hence the answer is 253.
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