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Question

Select the number from among the given options that can replace the question mark (?) in the given figure series.

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
145

To solve this figure series, let's examine the pattern using the given numbers:

The figure contains three sets, each with two squares leading to a circle, as shown below:

  1. In the first pair, the numbers are 4 and 5, leading to 41 in the circle.
  2. In the second pair, the numbers are 6 and 7, leading to 85 in the circle.
  3. In the third pair, the numbers are 8 and 9, and we need to find the number in the circle.

Let’s decode the pattern:

  • For the first pair: 4 and 5.
    • Compute: \(4^2 + 5^{(1+1)}\)
    • Calculation: \(4^2 = 16\) and \(5^2 = 25\)
    • Sum: \(16 + 25 = 41\)
  • For the second pair: 6 and 7.
    • Compute: \(6^2 + 7^{(2+1)}\)
    • Calculation: \(6^2 = 36\) and \(7^2 = 49\)
    • Sum: \(36 + 49 = 85\)
  • Apply the same logic to the third pair: 8 and 9.
    • Compute: \(8^2 + 9^{(3+1)} = 64 + 81\)
    • Sum: \(64 + 81 = 145\)

Thus, the number that replaces the question mark in the third circle is 145.

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Similar Questions

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

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

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

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

     

    196 
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  5. In the above table, which two numbers will replace alphabet A and B, respectively?
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  7. Study the given pattern carefully and select the number from the given options that can replace the question mark (?).
     

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



     

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


Important Questions from Missing Number in Diagram

  1. Choose the correct alternative to replace the question mark (?).

    42 → 26

    71 → 78

    33 → 16

    62 → ?

  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. In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

    3

    11

    5

    45

    2

    4

    6

    44

    3

    7

    8

    ?

  4. In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives

    11

    2

    4

    98

    3

    6

    5

    100

    8

    9

    1

    ?

  5. Find the missing number.

    43505
    76?8
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