Question
What is printed to the screen if the user enters '5' when the following program is run? let userNum = readInt("Enter your favorite number : "); let calculatedNum =(userNum userNum) +userNum; console. log(calculate dNum); 5 25 C 30 50
Solution
4.4
(291 Votos)
Alejandro
Mestre · Tutor por 5 anos
Resposta
The correct answer is 'C', which corresponds to the number 30.
Explicação
## Step 1The given program is a JavaScript program. The first line of the program, `let userNum = readInt("Enter your favorite number : ");`, prompts the user to enter their favorite number. The entered number is then stored in the variable `userNum`.## Step 2The next line of the program, `let calculatedNum = (userNum userNum) + userNum;`, is supposed to perform a calculation. However, there is a syntax error in this line. The correct syntax for multiplication in JavaScript is `userNum * userNum`, not `userNum userNum`.3The corrected line of the program should be `let calculatedNum = (userNum * userNum) + userNum;`. This line of code calculates the square of the user's then adds the original number to it.## Step 4If the user enters '5', the program will calculate `5 * 5 + 5`, which equals `25 + 5 = 30`.