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 2 of 5.
Khairu. said:
1 decade ago
@Rafeek
Count the digits of the given number.
If it is odd take only the first number,
If it is even take first and second number for first consideration.
In this example the number 64009 is a 5 digit number. 5 is odd number. So take only 6 for first consideration.
Count the digits of the given number.
If it is odd take only the first number,
If it is even take first and second number for first consideration.
In this example the number 64009 is a 5 digit number. 5 is odd number. So take only 6 for first consideration.
Tulasiram said:
1 decade ago
Value of : square root of (3+root 5) is equal to ?
1) squareroot(3)/2 + 1/squareroot(2).
2) squareroot(3)/2 - 1/squareroot(2).
3) squareroot(5)/2 + 1/squareroot(2).
4) squareroot(5/2) + squareroot(1/2).
Tell me the answer with explanation please or send it to me.
1) squareroot(3)/2 + 1/squareroot(2).
2) squareroot(3)/2 - 1/squareroot(2).
3) squareroot(5)/2 + 1/squareroot(2).
4) squareroot(5/2) + squareroot(1/2).
Tell me the answer with explanation please or send it to me.
Raghvendra gupta said:
9 years ago
64009 from getting square root method only starting no.2 is perfect square 4 that is less than 6(64009).
So it must be noted that 1st digit must be less than 6 but the perfect square of 3 exceeds (6) and at lastno means 9 shows that last digit must be 3.
So it must be noted that 1st digit must be less than 6 but the perfect square of 3 exceeds (6) and at lastno means 9 shows that last digit must be 3.
(1)
C.M.Rafeek said:
1 decade ago
@ Amar
In the same way how we can find the square root of 737881 ?
What number we will take into first consideration ? 7 or 73 ?
If 7 it will be 2 (2*2). -> leads to mistake.
if 73 it will be 8 (8*8) -> leads to correct answer.
In the same way how we can find the square root of 737881 ?
What number we will take into first consideration ? 7 or 73 ?
If 7 it will be 2 (2*2). -> leads to mistake.
if 73 it will be 8 (8*8) -> leads to correct answer.
Amar said:
1 decade ago
Add the previous no (2+2=4) and den guess for the a no to divide 240 (ie 5, 45 * 5 = 225);
Add the previous no (45 + 5 =50) and den guess for the a no to divide 1509 (ie 3, 503 * 3 = 1509).
Add the previous no (45 + 5 =50) and den guess for the a no to divide 1509 (ie 3, 503 * 3 = 1509).
Tulasiram said:
1 decade ago
2|64009( 253
|4
|----------
45|240
|225
|----------
503| 1509
| 1509
|----------
| X
|----------
64009 = 253.
what is the process for above calculation?
|4
|----------
45|240
|225
|----------
503| 1509
| 1509
|----------
| X
|----------
64009 = 253.
what is the process for above calculation?
SUBHAJIT RAY said:
1 decade ago
Why this kind of time consuming solution done?
First of all there are only 4 option. Simply multiply 363*363 then 253*253. Then we can see 253*253 will make 64009.
First of all there are only 4 option. Simply multiply 363*363 then 253*253. Then we can see 253*253 will make 64009.
(4)
Punith said:
1 decade ago
1. Pair 6 40 09, subtract 6 by largest square number which is less than 6.
2. The number is 2(2*2=4),
The square of 64009 starts from 2XX, Hence answer is 253.
2. The number is 2(2*2=4),
The square of 64009 starts from 2XX, Hence answer is 253.
Sakshi said:
1 decade ago
Another way to solve it..
get the L.C.M of 64009
it will be 11*11*23*23=64009
11 square* 23square = 64009
so, the square root of 64009= 11*23=253
get the L.C.M of 64009
it will be 11*11*23*23=64009
11 square* 23square = 64009
so, the square root of 64009= 11*23=253
Google said:
1 decade ago
Easy way to solve this problem is use the all hints and multiply them 2 times you get the answer.
Example =====253*253=64009.
Example =====253*253=64009.
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