Aptitude - Square Root and Cube Root - Discussion
Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 2)
2.
| What should come in place of both x in the equation | x | = | 162 | . |
| 128 | x |
Answer: Option
Explanation:
| Let | x | = | 162 |
| 128 | x |
Then x2 = 128 x 162
= 64 x 2 x 18 x 9
= 82 x 62 x 32
= 8 x 6 x 3
= 144.
x = 144 = 12.
Discussion:
35 comments Page 2 of 4.
PRANAV said:
8 years ago
How to solve it? I am getting confuse, Please tell me.
(1)
Apeksha said:
8 years ago
x^2 = root of 128 * 162.
= root of 20736.
x^2 = 144,
x = root of 144,
x = 12.
= root of 20736.
x^2 = 144,
x = root of 144,
x = 12.
Mahesh said:
9 years ago
Thanks @Sameer.
Pbk said:
9 years ago
@Parag.
Meaning of ^(Circumflex/Caret).
Circumflex : It is a symbol used to represent a number to the power of the other number. The symbol of circumflex is ^. This symbol is also referred as Hat or Caret.
Example:-
2^3 (ie:- 2 to the power of 3).
2^3 = 2*2*2.
Meaning of ^(Circumflex/Caret).
Circumflex : It is a symbol used to represent a number to the power of the other number. The symbol of circumflex is ^. This symbol is also referred as Hat or Caret.
Example:-
2^3 (ie:- 2 to the power of 3).
2^3 = 2*2*2.
Feroz said:
10 years ago
@Jiyan prathap.
This is not working to roots I thinks so but it useful for me.
This is not working to roots I thinks so but it useful for me.
Parag said:
10 years ago
What is the meaning of ^?
Annoy singh said:
10 years ago
Because x = 144.
x = 12*12=144.
x = 12*12=144.
Mani Ratan said:
1 decade ago
Can we do 162=81*2 please solve it by other process?
Hammad said:
1 decade ago
We only find the value of x which is equal to 144. But 12 is the square root of 144. If we looking on the question he only demand the value of x which we find initially.
Azam said:
1 decade ago
Short method is that first take LCM of number given then make pairs.
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