>> Aptitude >> Trains

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Contents:

- Aptitude
- Approximation
- Average
- Boat and Stream
- Compound interest
- Discount
- Linear Equations
- Mensuration
- Mixture and Allegation
- Number series
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- Partnership
- Percentage
- Permutation and combination
- Pipes and Cisterns
- Probability
- Problem on ages
- Profit and Loss
- Ratio and Proportions
- Simple and compound interest
- Time and Distance
- Time and work
- Trains
- Unitary Method
- Word problems
- Work and Wages

1). A 220 m long train passes a signal post in 12 s. Find the speed of the train.
We know that, Speed: \( \Large \frac{Distance}{Time} \) Speed of the train = \( \Large \frac{220}{12} \times \frac{18}{5} \) = 66 km/h | ||||

2). A train takes 9 s to cross a pole. If the speed of the train is 48 km/h, then length of the train is
Let the length of the train be x m. Now, speed = 48 km/h = \( \Large 48 \times \frac{5}{18} m/s \) Train takes 9 s to cross a pole. Therefore, Length of train, x = Speed X Time = \( \Large 48 \times \frac{5}{18} \times 9 \) = 120m | ||||

3). A train running at the speed of 72 km/h goes past a pole in 15 s. What is the length of the train?
Speed of train | ||||

4). 150 m long train running with the speed of 90 km/h to cross a bridge in 26 s. What is the length of the bridge?
Let length of bridge be x m. | ||||

5). A train travelling at a speed of 30 m/s crosses a 600 m long platform in 30 s. Find the length of the train.
Let length of the train be x m. | ||||

6). A 240 m long train crosses a platform of equal length in 27 s. What is the speed of the train in km/h?
By the formula, Speed = \( \Large \frac{Distance}{Time} \) = \( \Large \frac{ \left(240+240\right) }{27} \times \frac{18}{5} \) = \( \Large \frac{480}{27} \times \frac{18}{5} \) = 64 km/h | ||||

7). A train crossed a platform in 43 s. The length of the train is 170 m . What is the speed of the train?
Correct Answer: Cannot be determined
Length of platform is not given. So it cannot be determined. | ||||

8). A train crosses a platform in 30s travelling with a speed of 60 km/h. If the length of the train be 200 m, then the length of the platform is
Speed of train = 60 km/h | ||||

9). A train crosses a bridge of length 150 m in 15 s and a man standing on it in 9 s. The train is travelling at a uniform speed. Length of the train is
Let the length of the train be x m. | ||||

10). A train moving with uniform speed crosses a pole in 2s and a 250 m long bridge in 7s. Find the length of the train.
Let length of the train be L m. |