Search Previous Year Questions

Two trains run on parallel tracks at 126 kmph and 108 kmph. When they are running in opposite directions they cross each other completely in 5 seconds and when they are running in the same direction a passenger sitting in the faster train sees that the other train passes completely in 30 seconds. Then the length of the faster train is (in meters)

A train of 450 meters long moving with a speed of 65 km/hr crosses a man travelling in some direction of the train in 27 seconds. Then the speed with which the man moving and his direction is

Two cubes, each of volume 4,096 c.c., are joined to form a cuboid. Then the difference between the surface area of the cuboid and the total surface area of the two cubes is (in sq.cm)

In a mixture of acid and water, if 1 liter of water is added, then the new mixture contains 20% acid. When 1 liter of acid is added to the new mixture, the acid in the resulting mixture is  \(33\frac{1}{33}\)%. The percentage of acid in the original mixture is

The speed of a motor boat in still water is 50 kmph. If the motor boat travels 60 km against the stream in 1 hr 30 minutes, then the time taken by the boat to cover 100 km along the stream is (in minutes)

A motor boat travelled to a point B from A and returned to A. The speed of the stream is 3 km/hr. If distance between A and B is 2 km and total time taken for the round trip is 30 minutes, then speed of the motor boat in still water is:

In a race of 1200 meters, A can beat B by 120 meters and in a race of 800 meters B can beat C by 40 meters. In a race of 400 meters, by how many meters can A beat C?

In three different vessels A, B and C, syrup and water are mixed in the ratios 2:3, 3:5 and 5:7 respectively. If 15 liters of mixture is taken from A, 16 liters from B and x liters from C and mixed, the resulting mixture has syrup and water in the ratio 2:3. Find x=.

The present age of A is twice the age of B. 15 years ago, the age of A was thrice the age of B. Then 25 years ago, the age of A was:

The ratio of ages of Ram and Rahim after 5 years from now is 11:10. The ratio of their ages 4 years ago was 8:7. The ratio of their present ages is: