What appro×imate value should come in the place of ‘?’ in the following questions.

\((?)^3+ (600) = 725\)

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RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 2)
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  1. 5
  2. 6
  3. 7
  4. 8
  5. None of these

Answer (Detailed Solution Below)

Option 1 : 5
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Detailed Solution

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Calculation:

\( (?)^3 + 600 = 725 \)

First, subtract 600 from both sides to isolate the cube term:

\( (?)^3 = 725 - 600 \)

\( (?)^3 = 125 \)

Now, take the cube root of both sides to solve for '?':

\( ? = \sqrt[3]{125} \)

\( ? = 5 \)

∴ The value of '?' is 5.

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