**This one could have been harder than it was, but I happen to know the magic number to make this easy, 235. Here is why 235 is the magic number:**

**US MPG = 100/E [km/L] x 0.621 [mi/km] x 3.785 [L/US gal] = 235 ÷ E**

**Where E is Liters per 100km. My solution to exercise 6 is below:**

*6. Write a program that asks you to enter an automobile gasoline consumption figure in the*

*European style (liters per 100 kilometers) and converts to the U.S. style of miles per gallon.*

*Note that in addition to using different units of measurement, the U.S approach*

*(distance / fuel) is the inverse of the European approach (fuel / distance). Note that 100*

*kilometers is 62.14 miles, and 1 gallon is 3.875 liters. Thus, 19 mpg is about 12.4 l/100*

*km, and 27 mpg is about 8.7 l/100 km.*

#include <iostream> using namespace std; int main() { float liters; int mpg; cout << "Enter the number of European liters per 100 kilometers to convert: "; cin >> liters; // Convert to US mpg mpg = 235 / liters; cout << liters << " liters " << " is equal to " << mpg << " miles per gallon " << endl; cin.get(); return 0; }