Question

LAB 3.3 – Working with String Input and Type CastingStep 1: RemovefindErrors.cppfrom the project and add thepercentage.cppprogram in yourLab3 folder to the project. Here is a copy of the source code.1 // Lab 3 percentage.cpp2 // This program will determine the percentage3 // of answers a student got correct on a test.4 // PUT YOUR NAME HERE.56 // INCLUDE THE FILE NEEDED TO DO I/O7 // INCLUDE THE FILE NEEDED TO FORMAT OUTPUT8 // INCLUDE THE FILE NEEDED TO USE STRINGS9 using namespace std;1011 int main()12 {13string name;14int numQuestions,15numCorrect;16double percentage;1718// Get student's test data19cout << "Enter student's first and last name: ";20// WRITE A STATEMENT TO READ THE WHOLE NAME INTO THE name VARIABLE.2122cout << "Number of questions on the test: ";23cin >> numQuestions;24cout << "Number of answers the student got correct: ";25cin >> numCorrect;2627// Compute and display the student's % correct28// WRITE A STATEMENT TO COMPUTE THE % AND ASSIGN THE RESULT TO percentage.2930// WRITE STATEMENTS TO DISPLAY THE STUDENT'S NAME AND THEIR TEST31// PERCENTAGE WITH ONE DECIMAL POINT.3233return 0;34 }Step 2: Replace each capitalized comment with C++ code that does what the comment asks you to do.Then compile and run the program. Here is what a sample run should look like:Sample RunEnter student's first and last name: John SmithNumber of questions on the test: 40Number of answers the student got correct: 31John Smith77.5%

Answer 1

Answer:

// Program is written in C++ Programming Language

// Comments are used for explanatory purpose

#include<iostream>

using namespace std;

int main ()

{

// Variable declaration

string name;

int numQuestions;

int numCorrect;

double percentage;

//Prompt to enter student's first and last name

cout<<"Enter student's first and last name";

cin>>name; // this line accepts input for variable name

cout<<"Number of question on test"; //Prompt to enter number of questions on test

cin>> numQuestions; //This line accepts Input for Variable numQuestions

cout<<"Number of answers student got correct: "; // Prompt to enter number of correct answers

cin>>numCorrect; //Enter number of correct answers

percentage = numCorrect * 100 / numQuestions; // calculate percentage

cout<<name<<" "<<percentage<<"%"; // print

return 0;

}

Explanation:

The code above calculates the percentage of a student's score in a certain test.

The code is extracted from the Question and completed after extraction.

It's written in C++ programming language