Q14
ArithmeticSpeed, Time & Distance
Train A took 35 minutes to cover a distance of 50 km. If the speed of train B is 25% faster than train A, it will cover the same distance in:
- a.25 minutes
- b.28 minutes
- c.30 minutes
- d.36 minutes
Answer: (B) 28 minutes
For the same distance time is inversely proportional to speed; speed × 1·25 means time ÷ 1·25. So train B takes 35 ÷ 1·25 = 28 minutes. Simply cutting 25% of the time would wrongly give about 26 minutes, and 30 or 36 minutes are too slow.