Question : If
Option 1: 5
Option 2: 6
Option 3: 9
Option 4: 7
Correct Answer: 6
Solution :
Given:
⇒
Dividing both sides by
⇒
Now, cubing both sides,
⇒
⇒
⇒
⇒
Putting the values, we get
Hence, the correct answer is 6.