C Programming: Marks Calculation Quiz

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Questions and Answers

What is the purpose of the program that prints 'Hello World'?

To accept user input before displaying a message.

To convert a character to its ASCII equivalent.

To calculate the sum of two numbers and display it.

To display a greeting message to the user. (correct)

What is the output of the program that calculates the ASCII value of a character when 'c' is entered?

99 (correct)

100

In the program that calculates the sum and average of two numbers, which line correctly calculates the average?

avg = (a + b) / 2.0;

avg = (a + b) / 3;

avg = (a + b) * 2;

avg = (a + b) / 2; (correct)

What is missing from the program that calculates total and percentage of marks for 5 subjects?

Printing the total and percentage. Signup and view all the answers

What is the data type of the variable 'avg' used in the program that calculates sum and average?

float Signup and view all the answers

What is the purpose of the statement 'percent = total/5;' in the source code?

To calculate the average marks per subject. Signup and view all the answers

What will be the output for the entered number 0 in the even/odd program?

Given number 0 is even Signup and view all the answers

Which part of the program checks whether the number is prime?

The loop from 2 to num / 2 Signup and view all the answers

What condition would lead to a 'not prime' classification for the number 9 in the prime-checking program?

If it is divisible by any number other than 1 and itself Signup and view all the answers

What bonus does the program assign if sales are below 10,000?

200 Signup and view all the answers

What will be the value of DA when the basic salary is 1000 and the sales amount is greater than 10,000?

100 Signup and view all the answers

What is the primary use of a conditional statement in programming?

To execute code only if a specific condition is met Signup and view all the answers

Which function is used to read input from the user in the given programs?

scanf() Signup and view all the answers

What will be the total salary if the sales amount entered is 9,000?

1,900.00 Signup and view all the answers

In the second program, what will happen if the input numbers are 5, 5, and 5?

The program will print 5. Signup and view all the answers

What is the output of the program when the input number is -10?

The given number -10 is negative. Signup and view all the answers

Which statement about the total salary calculation is incorrect?

Basic salary is excluded from the total salary calculation. Signup and view all the answers

What will be printed when the input is 0 in the third program?

The given number 0 is zero. Signup and view all the answers

How will the largest number be determined in the second program?

By checking conditions for all three numbers. Signup and view all the answers

If the sales amount entered is 12,000, how much bonus will be added to the total salary?

500 Signup and view all the answers

What is the significance of the statement 'else print num3' in the second program?

It is a catch-all for when num1 and num2 are not greater. Signup and view all the answers

Study Notes

Program Overview

Programs demonstrate basic concepts in C programming, including input/output operations, conditionals, loops, and arithmetic calculations.

Program 1: Hello World

Simple program to print "Hello World".
Uses printf function for output.

Program 2: ASCII Value

Takes a character input and prints its ASCII value.
Uses %d format specifier for integer representation.

Program 3: Sum and Average

Takes two integer inputs, calculates and displays their sum and average.
Average calculated by dividing the sum by 2.

Program 4: Total and Percentage of Marks

Prompts user to enter marks for five subjects.
Total and percentage are calculated from the entered marks.
Uses integer division for total and float for percentage calculation.

Program 5: Check Odd or Even

Checks if an entered number is odd or even.
Uses a conditional statement to determine the result.

Program 6: Prime Number Check

Determines if a number is prime.
Loops from 2 to num/2 to check for factors.

Program 7: Salary Calculation Based on Sales

Basic salary set at 1000.
Bonuses and allowances depend on sales amount (e.g., different rates for sales above or below 10,000).

Program 8: Largest of Three Numbers

Compares three numbers to find and display the largest.
Uses conditional statements to determine the largest number.

Program 9: Positive, Negative, or Zero

Takes a number as input and categorizes it as positive, negative, or zero.
Employs nested conditional statements for categorization.

Program 10: Grade Calculation

Not fully detailed but suggests checking grades based on input marks.

Additional Notes

Correct use of scanf for reading inputs.
Importance of defining variable types and initializing variables properly.
Emphasizes understanding conditional statements and loops for flow control in programs.

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Description

Test your knowledge of C programming with this quiz focused on calculating total and percentage from input marks in five subjects. Ideal for beginners learning about user input and basic arithmetic operations. See how well you understand fundamental programming concepts!