1.

A man drives his car with uniform speed from place A to the place B which is 150 km away. Again he returns to the place A by increasing the speed of the car 10km/hour and there by reaches 30 minutes earlier than the time taken in his forward journey. find the total time taken by him in forward and return journey. OR A, B and P are the three non-collinear points on a plane. The distance between the point A and P is 2m more than the distance between the points B and P. if the distance between points A and B is 10 m and AB is the longest side of the triangle ABC. Is ABC a right angled triangle or not, justify your answer using the discriminant of quadratic equation and also find the measure of AP and BP.

Answer»


Answer :5.5 HOUR
Or
`:.` The SIDE of `DELTAAPB` has a REAL value.


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