Question Details

Direction (41–52): What will come in the place of (?) mark in following question?


? 3 × 6 + 512 3 = 170

Options

A

2

B

3

C

4

D

5

E

1

Show Answer

Correct Answer :

Option B

3

3

Solution :

The correct option is 3.

To find the value that comes in place of the question mark (?), we can write the equation as:
x3×6+5123=170
where x represents the unknown value (?).

First, we evaluate the cube root of 512:
Since 83=8×8×8=512, we have:
5123=8

Substitute this value back into the original equation:
x3×6+8=170

Subtract 8 from both sides of the equation to isolate the term with x:
x3×6=170-8
x3×6=162

Now, divide both sides of the equation by 6:
x3=1626
x3=27

To find x, take the cube root of both sides:
x=273
Since 33=27, we find:
x=3

Thus, the value that should come in place of the question mark is 3.

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