Find the resultant of two velocities 6 km/hr and `6\ sqrt(2)` km/hr inclined to one another at an angle of 135.

Find the value of : 0.6 % of 2 km

A man going east in a car with a velocity of 20 km/hr, a train appears to him to move towards north with a velocity of 20 sqrt(3) km/hr. What is the actual velocity and direction of motion of train?

Two trains are moving towards each other at speeds of 144 km/hr and 54 km/hr relative to the ground. The first train sounds a whistle of frequency 600 Hz. Find the frequency of the whistle as heard by a passenger in the second train before the trains meet. (y =340m/s)

A person is walking to the east at 2 km/hr and the rain drops appear to him dropping vertically downwards at 2sqrt(3)km//hr . Find the actual velocity of rain.

The distance between two stations is 340 km. Two trains start simultaneously from these stations on parallel tracks to cross each other. The speed of one of them is greater than that of the other by 5 km/hr. If the distance between the two trains after 2 hours of their start is 30 km, find the speed of each train.

Find the time taken by a train 150 m long, running at 60 km/hr in crossing a man standing on the platform.

A man completed a trip of 136 km is 8 hours. Some parts of the trip was covered at 15km/hr and the remaining at 18km/hr. Find the part of the trip covered at 18 km/hr.