Question

Language C++

Ask the user to enter their weight (in pounds) and their height in inches. Calculate their Body Mass Index (BMI) and tell them whether they are underweight, overweight, or at optimal weight.

BMI formula: weight * 703 / (height * height)

Optimal weight is a BMI from 19 to 26. Lower is underweight, higher is overweight.

Prompts:

Enter your weight (in pounds): [possible user input: 144]

Enter your height (in inches): [posible user input: 73]

Possible Outputs:

Your BMI is 18.9964, which means you are underweight.

Your BMI is 29.2612, which means you are overweight.

Your BMI is 25.8704, which means you are at optimal weight.

Notes and Hints:

1) For simplicity, assume user entries will be in whole numbers. However, BMI must be calculated with decimals.

2) You must use an if/else if structure for this

Answer 1

C++ code:

#include <iostream>
using namespace std;
int main(){
    //initializing weight,height and BMI
    double weight,height,bmi;
    //asking for weight
    cout<<"Enter your weight (in pounds): ";
    //accepting it
    cin>>weight;
    //asking for height
    cout<<"Enter your height (in inches): ";
    //accepting it
    cin>>height;
    //finding bmi
    bmi=weight*703/(height*height);
    //checking if BMI is less than 19
    if(bmi<19)
    //printing underweight
        cout<<"Your BMI is "<<bmi<<", which means you are underweight."<<endl;
    //checking if BMI is greater than 26
    else if(bmi>26)
    //printing overweight
        cout<<"Your BMI is "<<bmi<<", which means you are overweight."<<endl;
    else
    //printing optimal weight
        cout<<"Your BMI is "<<bmi<<", which means you are at optimal weight."<<endl;
    return 0;
}

Screenshot:

Input and Output: