Start learning →

SSC Stenographer Number Series, Coding and Decoding and Odd Man Out — practice questions — page 2

Explore 40 free Number Series, Coding and Decoding and Odd Man Out questions in SSC Stenographer Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

Practise Number Series, Coding and Decoding and Odd Man Out with Quill →

Number Series, Coding and Decoding and Odd Man Out questions and exercises with answers

Showing questions 31–40 of 40.

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

Finding a term

Read exercise and reference answers
Questions
  1. Question
    A GP starts at 3 with common ratio 2. Its third term is
    Choices
    1. 6
    2. 12
    3. 8
    Correct choice
    12
  2. Question
    Its fourth term is
    Choices
    1. 18
    2. 16
    3. 24
    Correct choice
    24
  3. Question
    A sequence 5, 10, 20, 40 has common ratio
    Choices
    1. 2
    2. 5
    3. 10
    Correct choice
    2
  4. Question
    The term after 40 is
    Choices
    1. 60
    2. 80
    3. 45
    Correct choice
    80
Once the rule is named, extending is mechanical. Source: syllabus Maths, Ch 9 Sequences and Series.

Open this exercise →

Assertion and reason

Read exercise and reference answers
Questions
  1. Reason
    Constant differences are the commoner pattern and are quicker to spot.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Checking differences before ratios saves time on a series item.
  2. Reason
    It is defined as an arrangement in definite order according to a rule.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    A sequence must follow some rule.
  3. Reason
    A sequence arranges numbers in a definite order.
    Verdict
    The assertion is false and the reason is true.
    Assertion
    A series is just another name for a sequence.
The reason must genuinely explain the assertion. Source: syllabus Maths, Ch 9 Sequences and Series.

Open this exercise →

Two are true, one is not

Read exercise and reference answers
Questions
  1. False statement
    A GP has a constant difference
    Statements
    1. A GP has a constant ratio
    2. A sequence has a definite order
    3. A GP has a constant difference
  2. False statement
    A series is an ordered list
    Statements
    1. A series is an ordered list
    2. A series is the sum of a sequence's terms
    3. A sequence is an ordered list
  3. False statement
    2, 6, 18 has difference 4
    Statements
    1. 2, 6, 18 has ratio 3
    2. 2, 6, 18 has difference 4
    3. 3, 7, 11 has difference 4
The false line swaps difference for ratio, or sequence for series. Source: syllabus Maths, Ch 9 Sequences and Series.

Open this exercise →

How to practise

  1. Choose a Number Series, Coding and Decoding and Odd Man Out question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Reasoning topics

AnalogiesAnalogyVenn DiagramsNumber SeriesBlood RelationsCoding DecodingNumber Series ReasoningDistance and Direction