Time And Distance Pdf Model Questions & Answers, Practice Test for ibps po prelims 2024 2025

Answer: (d)

Perimeter = 4 × $√160000$ = 1600 m

Time = $\text"Distance"/\text"Speed" = {1600 × 5 × 60}/5000$ = 96 min

None of these

Answer: (c)

Speed of train = 36 kmph

= $(36 × 5/18)$ m /sec = 10 m/sec.

Required time = $\text"length of train + Bridge"/\text"Speed of train"$

= ${270 + 180}/10$ = 45 seconds

Answer: (a)

Let the speed of the cars be x km/h and y km/h, respectively.

Their relative speeds when they are moving in same direction = (x – y) km/h.

Their relative speeds when they are in opposite directions = (x + y) km/h.

Now, $70/{x + y} = 1$ or x + y = 70 …(1)

and $70/(x - y) = 7$ or x – y = 10 …(2)

Solving (1) and (2), we have

x = 40 km/h and y = 30 km/h.

Answer: (c)

Due to stoppges the train travels

(45 – 36) = 9 km less in an hour than it could have travelled without stoppages.

Thus train stops per hour for $9/45$ × 60 = 12 min.

Answer: (b)

If the rate of the stream is x, then 2(4.5 – x) = 4.5 + x

⇒ 9 – 2x = 4.5 + x

⇒ 3x = 4.5 ⇒ x = 1.5 km/hr