Number and Letter Series 2025

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Struggling with sequence and series questions? This Number and Letter Series reveals the hidden patterns in number and letter series to boost your logical reasoning skills and test scores.

Number and Letter Series Quizzes
Number Series Questions 1

Number and Letter Series

The number and letter series are used to assess a candidate’s ability to interpret mathematical expressions accurately and within the given time frame. Number and letter series are sequences in logical reasoning where elements (numbers or letters) follow a specific, hidden pattern or rule. Number series use mathematical rules like addition or squares, while letter series rely on the position of letters in the alphabet or other alphabetic patterns. Both types of series are common in aptitude tests and require identifying the underlying logic to predict the next term or a missing term

Addition Case

Some digits are added in a series that is hidden, and you are asked to find out the next figure in the series. This series is gradually increasing.

Subtracting Case

In this case, some digits are subtracted from the series, and you are asked to complete the series by inserting the missing figure. This series is gradually decreasing.

Adding and Subtracting Case

In this question, some digits of numbers are added and subtracted in the same series jointly, which affects the structure, of easier to find the right answer by paying some attention to the series.

Multiplying Case

In this case, some digits are being multiplied in ascending order to make a sequence.

Letter Series

A letter series is a sequence of letters that follows a logical rule or pattern. 

Alphabetical Order

Letters appear in their standard alphabetical sequence (e.g., A, B, C, D).

Skipping Letters

Certain letters might be skipped (e.g., A, C, E, G, which skips every other letter).

Positional Value

The position of a letter in the alphabet (A=1, B=2, etc.) can be used as a basis for the pattern. 

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Online C Language Quiz 10

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Test your foundational C programming knowledge with this concise 31-question MCQ Online C Language Quiz. Perfect for students and developers to practice key concepts on functions, variables, loops, and file handling in C. Let us start with the Online C Language Quiz now.

Online C Language Quiz with Answers
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Inter C Language 10

Online C/ C++ Language Quiz for Computer Science Students

tail spin

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-------------- iterates at least once if the condition is false.

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Multiple arguments to a function are separated by

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Which of the following looks for the prototypes of functions used in a program?

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The first line of the user-defined function is

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If you want a user to enter exactly 20 values, which loop would be the best to use?

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Function declaration is also known as function ------------?

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What is the final value of i after executing the following code for(int=1; i<5; i+=2)?

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A function that does not return anything has return type

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An array subscript should be

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A semicolon is placed at the end of a condition in?

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printf() is a ?

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Which one is the loop structure?

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The scope of a variable refers to its

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A built-in function

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The do-while loop structure always ends with

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Which of the following modes opens only an existing file for both reading and writing

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Which of the following is true about a function call?

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In a C program, two functions can have

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Local variables are also called

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A file is stored in

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Global variables are created in

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Memory allocated to a local variable at the time of its

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A loop within a loop is called?

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Function prototypes for built-in functions are specified in

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Another name for a built-in function is

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On successfully closing a file, the fclose() returns

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What is the final value of $x$ after executing the following code for(int x = 0; x < 10; x++)?

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Memory is allocated to a local variable at the time of its

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A function can return ------------- value.

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Formal arguments are also called

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In the C language, the first line of a function definition is known as

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Online C Language Quiz with Answers

  • An array subscript should be
  • On successfully closing a file, the fclose() returns
  • Which of the following modes opens only an existing file for both reading and writing
  • A file is stored in
  • A function can return ————- value.
  • Memory allocated to a local variable at the time of its
  • The scope of a variable refers to its
  • Local variables are also called
  • Function declaration is also known as function ————?
  • A function that does not return anything has a return type
  • In the C language, the first line of a function definition is known as
  • Multiple arguments to a function are separated by
  • The first line of the user-defined function is
  • Another name for a built-in function is
  • Formal arguments are also called
  • Global variables are created in
  • Memory is allocated to a local variable at the time of its
  • Which of the following is true about a function call?
  • Which of the following looks for the prototypes of functions used in a program?
  • In a C program, two functions can have
  • Function prototypes for built-in functions are specified in
  • A built-in function
  • printf() is a?
  • A loop within a loop is called?
  • What is the final value of i after executing the following code for(int=1; i<5; i+=2)?
  • Which one is the loop structure?
  • If you want a user to enter exactly 20 values, which loop would be the best to use?
  • What is the final value of $x$ after executing the following code for(int x = 0; x < 10; x++)?
  • ————– iterates at least once if the condition is false.
  • The do-while loop structure always ends with
  • A semicolon is placed at the end of a condition in?

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C Language Programming Quiz 9

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Test your core C Programming knowledge with this 20-question MCQ C Language Programming Quiz! Designed for intermediate learners and programmers, this C Language Programming Quiz covers essential concepts like loops (while, do-while, for), the ternary operator, switch-case statements, and conditional logic. Perfect for exam preparation and cracking job interview tests. See how you score on key topics every C developer must master. Let us start with the Online C Language Programming Quiz now.

Online C Language Programming Quiz with Answers
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Inter C Language 9

Online multiple-choice questions about the C Language

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Online C Language Programming Quiz with Answers

  • Which of the following loops is available in the C language?
  • ———— loop structure always executes at least once?
  • A while loop is also called
  • One iteration of the loop is known as
  • A loop that never ends is called
  • One execution of a loop is known as a (n).
  • How many types of loop structures are present?
  • Which operator is called a ternary operator?
  • The conditional operator takes
  • Another term for a conditional operator is
  • The conditional operator is used as an alternative to
  • Which of the following is called a counter loop?
  • The case block in the switch() structure ends with
  • The last statement of each case block in the switch() structure must be
  • A switch statement is an alternative to
  • Which keyword is not used in a switch statement?
  • Which of the following is used for making two decisions?
  • What is the simplest selection structure?
  • In an if statement, true is represented by
  • Another term for a computer making a decision is

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