Question 1158453
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            Similar problems were just solved by me SEVERAL times today.


            Therefore, this time I will omit all the words.



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The "time" equation is


    {{{60/(x-2)}}} - {{{60/x}}} = 1    hour longer.


Solve by reducing to a quadratic equation.


Or guess the answer MENTALLY :  x = 12 km/h.


<U>CHECK</U>.  {{{60/(12-2)}}} - {{{60/12}}} = {{{60/10}}} - {{{60/12}}} = 6 - 5 = 1 hour.   ! Correct !
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Solved.