11th Class
Mathematics
Sample Paper
Mathematics Olympiad - Sample Paper-11
question_answer
A car is being driven, in a straight line and at a uniform speed, towards the base of a vertical tower. The top of the tower is observed from the car and, in the process, it takes 10 minutes for the angle of elevation to change from \[45{}^\circ \] to\[60{}^\circ \]. After how much time will this car reach the base of the tower?