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RRB NTPC Number Sense — practice questions

Explore 1 free Number Sense questions in RRB NTPC Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Worked practice questions

SAT · Mathematics · Polynomial / Number — Odd One Out

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Questions
  1. Items
    1. x² + 5x + 6
    2. x² + 6
    3. x² − 5x + 6
    4. x² + 4x + 4
    Reason
    x² + 6 has no linear term; the others factor into binomials.
    Odd item
    x² + 6
  2. Items
    1. 1/2
    2. 0.5
    3. 2/3
    4. 5/10
    Reason
    2/3 is not equal to 0.5; the others are.
    Odd item
    2/3
  3. Items
    1. sin 30°
    2. cos 60°
    3. 1/2
    4. √2/2
    Reason
    √2/2 ≈ 0.707 (= sin 45°); the others equal 1/2.
    Odd item
    √2/2
  4. Items
    1. 1, 1, 2, 3
    2. 2, 4, 6, 8
    3. 3, 6, 9, 12
    4. 5, 10, 15, 20
    Reason
    1, 1, 2, 3 is Fibonacci; the others are arithmetic progressions.
    Odd item
    1, 1, 2, 3
Instructions
Tap the item that doesn't fit the pattern.

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