



 
Hi Beket, Draw a diagram!
T is the train station, F is your friend and Y is you. From the diagram it is clear that FY, the distance between your friend and you is the hypotenuse of a right triangle. Hence this is a problem for Pythagoras' Theorem. After you have travelled for t hours how far have you travelled? This is TY. How far has your friend travelled? What is the distance FY? This is 100 miles. Solve for t. Penny  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 