Sum of the length of two trains P and Q is 330 . The ratio of the speeds of P and Q is `5 : 8` . Ratio between time to cross an electric pole by P and Q is `4 : 3` . Find the difference in the length of two trains .

The ratio of length of two trains is 6 : 5 and theratio of their speed is 3 : 2 The ratio of time taken by them to cross a pole is:

The ratio of length of 2 trains is 5 : 6 and the ratio of their speeds is 2 : 3 . Find the ratio of time taken by them to cross a pole.

What is the ratio between times taken by a train 240 m long to cross an electric pole and a bridge of 80 m length ?

A train moving with a speed of 60 km per hour crosses an electric pole in 30 seconds. What is the length of the train in meters ?

P and Q have some coins with them. The ratio of the numbers of coins with P and Q is 7 : 8 . Q has 5 more coins than P has. Find the number of coins with Q .

Two trains P and Q whose front ends are 539 km apart. They start at the same time towards each other and cross each other after 200 minutes. The ratio of length of these trains is 3 ∶ 2 and their speeds are 90 km/hr and 72 km/hr. Find the difference of the length of these two trains.

A train running at a speed of 84 km/hour crosses an electric pole in 9 seconds. What is the length of the train in metres?