Evaluate:

This question was previously asked in
RPF Constable 2024 Official Paper (Held On 03 Mar, 2025 Shift 2)
View all RPF Constable Papers >
  1. 7
  2. 5
  3. 6
  4. 9

Answer (Detailed Solution Below)

Option 1 : 7
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General Science for All Railway Exams Mock Test
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Detailed Solution

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Expression:

Calculation:

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The value of the expression is 7.

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