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Question

Study the given pattern carefully and select the number from the given options that can replace the question mark (?) in it.

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
6

To solve the problem, we need to identify the pattern in the triangles. Let's analyze each triangle step-by-step.

  1. In the first triangle, the numbers on the edges are 4, 2, and 9. The middle number is 5.
    • Calculation: \(\frac{{4 + 2 + 9}}{3} = 5\).
  2. In the second triangle, the numbers on the edges are 17, 6, and 1. The middle number is 8.
    • Calculation: \(\frac{{17 + 6 + 1}}{3} = 8\).
  3. In the third triangle, the numbers on the edges are 5, 9, and 4. The middle number is the unknown, denoted by '?'.
    • We follow the same pattern: \(\frac{{5 + 9 + 4}}{3} = 6\).

Thus, the number that replaces the question mark is 6.

Therefore, the correct answer is 6.

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Important Questions from Missing Number in Diagram

  1. Study the given pattern carefully and select the number that can replace the question mark (?) in it.

  2. Study the given pattern carefully and select the number that can replace the question mark (?) in it:

    13 108
     11 
    26 55
     9 
    ? 157
     14 
  3. Study the given pattern carefully and select the number that can replace the question mark (?) in it :

    7

    4

    6

    927

    ?

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    1474

    149

    947

  4. In the given square, which option will replace the question mark?

    4A

    6C

    2E

    6P

    13R

    7T

    8N

    10P

    ?

  5. What is the value of the missing number?

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