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SSC CHSL Coding Decoding — practice questions — page 4

Explore 107 free Coding Decoding questions in SSC CHSL 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 91–107 of 107.

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

Sequence or series?

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Items
  1. Item
    An ordered list of terms
    Category
    Sequence
  2. Item
    a₁, a₂, a₃, ...
    Category
    Sequence
  3. Item
    What a number-series puzzle shows you
    Category
    Sequence
  4. Item
    The sum of the terms
    Category
    Series
  5. Item
    a₁ + a₂ + a₃ + ...
    Category
    Series
  6. Item
    Has a value, not just an order
    Category
    Series
Categories
  1. Item
    Sequence
  2. Item
    Series
A sequence lists terms; a series adds them. Series questions and sequence questions are answered differently. Source: syllabus Maths, Ch 9 Sequences and Series.

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True or false: sequences and series

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Questions
  1. Statement is true
    Yes
    Statement
    A sequence arranges numbers in a definite order.
  2. Statement is true
    Yes
    Statement
    A series is formed by adding the terms of a sequence.
  3. Statement is true
    No
    Statement
    A sequence and a series are the same thing.
  4. Statement is true
    Yes
    Statement
    A sequence with finitely many terms is called finite.
  5. Statement is true
    Yes
    Statement
    A sequence that is not finite is called infinite.
The definitions the chapter opens with. Source: syllabus Maths, Ch 9 Sequences and Series.

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Complete the geometric progression rule

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Missing parts
  1. Answer
    ratio
    Choices
    1. ratio
    2. difference
    3. sum
  2. Answer
    ratio
    Choices
    1. ratio
    2. difference
    3. factor
  3. Answer
    1
    Choices
    1. 1
    2. 2
    3. 0
Complete the statement
A sequence is a geometric progression if the {0} of any term to its preceding term is the same throughout. That constant is called the common {1}, and the nth term is given by a·r^(n−{2}).
In a GP the RATIO between neighbours stays fixed, which is the pattern behind many series items. Source: syllabus Maths, Ch 9 Sequences and Series.

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