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Authors:
Walter Savitch ,julia Lobur
Chapter:
C++ Basics
Exercise:
Programming Projects
Question:13 | ISBN:9780321531346 | Edition: 7

Question

13. Many treadmills output the speed of the treadmill in miles per hour (mph) on the console, but most runners think of speed in terms of a pace. A common pace is the number of minutes and seconds per mile instead of mph.

Write a program that starts with a quantity in mph and converts the quantity into minutes and seconds per mile. As an example, the proper output for an input of 6.5 mph should be 9 minutes and 13.8 seconds per mile. (Continued)

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Answer 

//Header file section
 #include<iostream>
using namespace std;

int main()
{
    double mph;
	cout<<"Enter the speed of the treadmill in mph:";
	cin>>mph;
	double min_per_mile=(1/mph)*60;
	int min=static_cast<int>(min_per_mile);
	double sec=(min_per_mile-min)*60;
	cout<<"A common pace is the "<<min<<" minutes and "<<sec
                          <<" seconds per mile"<<endl;
	return 0;
}

OUTPUT OF THE PROGRAM CODE:

Enter the speed of the treadmill in mph:6.5
A common pace is the 9 minutes and 13.8462 seconds per mile

 

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