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Indian Navy SSR (Sailor) Coding Decoding — practice questions

Explore 20 free Coding Decoding questions in Indian Navy SSR (Sailor) Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Coding Decoding questions and exercises with answers

Showing questions 1–20 of 20.

Tap in order: steps to solve a Coding-Decoding questionRead the answer and worked solution →Find the next number in the seriesRead the answer and worked solution →Complete the definition of a sequenceRead the answer and worked solution →Sequence or series?Read the answer and worked solution →True or false: sequences and seriesRead the answer and worked solution →Complete the geometric progression ruleRead the answer and worked solution →Spotting the ruleRead the answer and worked solution →Constant difference, or constant ratio?Read the answer and worked solution →Order the steps: crack a number seriesRead the answer and worked solution →True or false: geometric progressionsRead the answer and worked solution →Finding a termRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every sequence with a constant ratioRead the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Finite or infinite?Read the answer and worked solution →Complete the geometric meanRead the answer and worked solution →True or false: reading a series questionRead the answer and worked solution →

Worked practice questions

Tap in order: steps to solve a Coding-Decoding question

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Steps
  1. Read both the original word and its given code
  2. Check whether each letter shifts forward or back
  3. Count the shift amount per letter (often +1 or -1)
  4. Apply the same shift to the new word
  5. Write down the resulting code

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Find the next number in the series

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Questions
  1. Question
    3, 6, 12, 24, ___
    Correct
    48
    Choices
    1. 24
    2. 48
    3. 72
    4. 96
  2. Question
    3, 6, 12, 24, 48, ___
    Correct
    96
    Choices
    1. 48
    2. 96
    3. 144
    4. 192
Instructions
Find the pattern and pick the next term.

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Complete the definition of a sequence

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Missing parts
  1. Answer
    definite
    Choices
    1. definite
    2. random
    3. increasing
  2. Answer
    rule
    Choices
    1. rule
    2. guess
    3. accident
  3. Answer
    finite
    Choices
    1. finite
    2. infinite
    3. geometric
Complete the statement
A sequence is an arrangement of numbers in {0} order according to some {1}. One with a finite number of terms is a {2} sequence.
A sequence is an ordered arrangement following a rule, which is exactly what a number-series question hides. Source: syllabus Maths, Ch 9 Sequences and Series.

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