Direction (41–52): What will come in the place of (?) mark in following question?
Correct Answer :
3
Solution :
The correct answer is 3.
Given equation:
Let the unknown value in the place of the question mark (?) be represented by . Therefore, the equation becomes:
First, we find the cube root of 512:
(since )
Substituting this value back into the equation, we get:
Subtract 8 from both sides of the equation:
Divide both sides by 6:
Taking the cube root on both sides:
(since )
Thus, the value that will come in the place of the question mark (?) is 3.
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