Two riders on the horseback with a gun and a bulletproof shield were moving towards each other at a constant speed of and , respectively. When they were apart, they started firing bullets at each other at the speed of . When a bullet of rider hits the shield of rider , rider fires a bullet, and the process continues vice versa. Neglecting the time lag at the instant when the bullet hits the shield and the rider fires the shot, find the total distance covered by all the bullets shot by both the riders.

Important Questions on Arithmetic
Route- Travel by train from Chiplun to Mumbai and then from Mumbai to Pune. The trains take and , respectively.
Route- Travel by a bus via Bhor. The distance covered by this route is at and there is a half an hour break in between.
Route- Travel by bus via Koyana. The distance covered by this route is at . If Pranesh goes by train, there is a time span of between the respective trains. Which route should he take to save his time?The numbers expressing (in meters) the length of fast and slow trains are three times the numbers expressing (in ) the speed of the slow and the fast train respectively. The speed of the slow train and that of the fast train consists of the same two digits, but in reverse order. The time taken by the two trains to pass each other, when travelling in an opposite direction on parallel lines will be:
Michael Johnson is a great sprinter. He can climb stairs of a staircase in . But after climbing 480 stairs his speed reduces to eight stairs in . The Empire State Building in NY has floors and the lift takes per floor. To get to the next floor, one has to climb stairs. If Michael is on the ground floor how should he reach the floor to be the first?
A long train passes a long platform in . If a man is walking at a speed of along the track and the train is away from him, how much time will it take to reach the man?
