Mathematics/General Ability MCQs
Topic Notes: Mathematics/General Ability
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
31
A train 380 m long moves at 74 km/h. How long does it take to pass a platform of length 294 m?
Answer:
32.79
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 74 * (1000/3600) = 20.56 m/s. 3. Time = Distance / Speed = (380 + 294) / 20.56 = 32.79 s.
32
A train 340 m long moves at 60 km/h. How long does it take to pass a platform of length 280 m?
Answer:
37.2
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 60 * (1000/3600) = 16.67 m/s. 3. Time = Distance / Speed = (340 + 280) / 16.67 = 37.2 s.
33
A train 480 m long moves at 97 km/h. How long does it take to pass a platform of length 257 m?
Answer:
27.35
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 97 * (1000/3600) = 26.94 m/s. 3. Time = Distance / Speed = (480 + 257) / 26.94 = 27.35 s.
34
A train 280 m long moves at 87 km/h. How long does it take to pass a platform of length 267 m?
Answer:
22.63
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 87 * (1000/3600) = 24.17 m/s. 3. Time = Distance / Speed = (280 + 267) / 24.17 = 22.63 s.
35
A train 240 m long moves at 77 km/h. How long does it take to pass a platform of length 257 m?
Answer:
23.24
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 77 * (1000/3600) = 21.39 m/s. 3. Time = Distance / Speed = (240 + 257) / 21.39 = 23.24 s.
36
A train 520 m long moves at 66 km/h. How long does it take to pass a platform of length 266 m?
Answer:
42.87
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 66 * (1000/3600) = 18.33 m/s. 3. Time = Distance / Speed = (520 + 266) / 18.33 = 42.87 s.
37
A train 560 m long moves at 77 km/h. How long does it take to pass a platform of length 277 m?
Answer:
39.13
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 77 * (1000/3600) = 21.39 m/s. 3. Time = Distance / Speed = (560 + 277) / 21.39 = 39.13 s.
38
A train 380 m long moves at 72 km/h. How long does it take to pass a platform of length 292 m?
Answer:
33.6
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 72 * (1000/3600) = 20.00 m/s. 3. Time = Distance / Speed = (380 + 292) / 20.00 = 33.6 s.
39
A train 340 m long moves at 61 km/h. How long does it take to pass a platform of length 281 m?
Answer:
36.65
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 61 * (1000/3600) = 16.94 m/s. 3. Time = Distance / Speed = (340 + 281) / 16.94 = 36.65 s.
40
A train 300 m long moves at 94 km/h. How long does it take to pass a platform of length 274 m?
Answer:
21.98
Step-by-step solution: 1. Relative distance to cover = train length + platform length. 2. Convert speed to m/s: 94 * (1000/3600) = 26.11 m/s. 3. Time = Distance / Speed = (300 + 274) / 26.11 = 21.98 s.