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Alphanumeric Series

1. Find the Next One

Find the Next One

2, A, 9, B, 6, C, 13, D, ? (Infosys - 2019)

  • 9
  • 10
  • E
  • 15
Explanation

In this sequence, a number is followed by an alphabet and vice versa. Let's focus on the number pattern: 

graph TD
    A[Start with 2] -->|Add 7| B[2 + 7 = 9]
    B -->|Subtract 3| C[9 - 3 = 6]
    C -->|Add 7| D[6 + 7 = 13]
    D -->|Subtract 3| E[13 - 3 = 10]
    E -->|Result| F[The next element in the sequence is: 10]

    style A fill:#f00,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
    style F fill:#00f,color:white,font-weight:bold,stroke-width:2px,stroke:yellow

2. Find the next alphanumeric code

Find the next alphanumeric code

2A11, 2D13, 4G17,? (IBM - 2017)

  • 12J23
  • 48M29
  • 36I29
  • 8E15
Explanation 

graph TD
    Start(2A11) -->|Multiply by 1| Step1(2D13)
    Step1 -->|Multiply by 2| Step2(4G17)
    Step2 -->|Multiply by 3| Result(12J23)
    Start -->|Move letter forward by 3| Step1
    Step1 -->|Move letter forward by 3| Step2
    Step2 -->|Move letter forward by 3| Result
    Start -->|Increase two digits by 2| Step1
    Step1 -->|Increase two digits by 4| Step2
    Step2 -->|Increase two digits by 6| Result

    style Start fill:#f00,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
    style Result fill:#00f,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
So, the next element in the sequence is: 12J23

3. Find the missing value

Find the missing value

ACE, ?, MOQ, SUW(last term) (Wipro)

  • GIL
  • EFH
  • GIK
  • FHJ
Explanation 

graph TD
    Start(ACE) -->|Move letter forward by 6| Step1(GIK)
    Step1 -->|Move letter forward by 6| Step2(MOQ)
    Step2 -->|Move letter forward by | Result(SUW)
    Start -->|Move letter forward by 6| Step1
    Step1 -->|Move letter forward by 6| Step2
    Step2 -->|Move letter forward by 6| Result
    Start -->|Move letter forward by 6| Step1
    Step1 -->|Move letter forward by 6| Step2
    Step2 -->|Move letter forward by 6| Result

    style Start fill:#f00,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
    style Step1 fill:#00f,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
So, the next element in the sequence is: GIK

4. Lowest digit product

Lowest digit product

867 209 242 283 543 Given this series:
When the digits within the number are multiplied with each other, the product of which number is the lowest?

  • 867
  • 209
  • 242
  • 283
Explanation 
graph TD
    Start(867) -->|Multiply digits: 8 x 6 x 7| Step1(336)
    Start2(209) -->|Multiply digits: 2 x 0 x 9| Step3(0)
    Start3(242) -->|Multiply digits: 2 x 4 x 2| Step4(16)
    Start4(283) -->|Multiply digits: 2 x 8 x 3| Step5(48)
    Start5(543) -->|Multiply digits: 5 x 4 x 3| Step6(60)

    style Start2 fill:#f00,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
    style Step3 fill:#00f,color:white,font-weight:bold,stroke-width:2px,stroke:yellow

5. Find the character

Find the character

Study the following arrangement carefully and answer the question that follows:
S K 6 & Q 2 R * C F 8 E $ G 2 # 4 9 L N 3 U V 5 Y α B 7 W 9
Which of the following letters, numbers, or symbols will be third to the left or a fifth of the left?

  • Q
  • S
  • 6
  • 2
Explanation 
graph TD
    Start(S K 6 & Q 2 R * C F 8 E $ G 2 # 4 9 L N 3 U V 5 Y α B 7 W 9) -->|Count 3 to the left| ThirdToLeft(6)
    ThirdToLeft -->|Count 5 of the left| FifthToLeft(R)
    ThirdToLeft -->|Check| Answer
    FifthToLeft -->|Check| Answer
    Answer -->|Display Result| Result(6)

    style Start fill:#f00,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
    style Result fill:#00f,color:white,font-weight:bold,stroke-width:2px,stroke:yellow