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User Irina made a request /729/.
The request goes like this "140 km traveled in 6 hours, 1 hour costs 170 rubles. How much does 1 km cost?". Thus, she needs to find the price per 1 kilometer.
In my humble opinion, this task can be solved in two steps - multiplication and division. That is, multiply the hour price by the total number of hours and divide the result by the total number of kilometers traveled.
But, our website is made to automate the calculations. Now you just need to enter the values of three variables and you will automatically receive an answer. Thus, talking about automation - we are freeing the user from pressing the "multiply", "divide" and "equals" buttons, and, potentially, from brain activity, if he/she suddenly decides to solve this problem in mind.