# 100+ Problems on Trains Questions for IBPS, SBI PO, SO, Clerk - 1

Question: 1

A 100 m long train is going at a speed of 60 km/hr. It will cross a 140 m long railway bridge in

(A) 7.2 sec

(B) 14.4 sec

(C) 21.6 sec

(D) 28.6 sec

Ans: B

Speed = $$(60 × {5}/{18})$$ m/sec = $${50}/{3}$$ m/sec.

Total distance covered = (100 + 140) m = 240 m.

∴ Required time = $$(240 × {3}/{50})$$ sec = $${72}/{5}$$ sec = 14.4 sec.

Question: 2

A 100 m long train is running at the speed of 30 km/hr. Find the time taken by it to pass a man standing near the railway line.

(A) 10 sec

(B) 11 sec

(C) 12 sec

(D) 13 sec

Ans: C

Speed of the train = $$(30 × {5}/{18})$$m/sec = $$({25}/{3})$$m/sec.

Distance moved in passing the standing man = 100 m.

Required time taken = $$100 /({25/3})$$ = $$(100 × {3}/{25})$$ sec = 12 sec.

Question: 3

A train running at a speed of 90 km/hr crosses a platform double its length in 36 seconds. What is the length of the platform in metres?

(A) 200

(B) 250

(C) 300

(D) 600

Ans: D

Let the length of the train be x metres.

Then, length of the platform = (2x) metres.

Speed of the train = $$(90 × {5}/{18})$$ m/sec = 25 m/sec.

∴ $${x + 2x} /{25}$$ = 36 ⇔ 3x = 900 ⇔ x = 300.

Hence, length of platform = 2x = (2 × 300) m = 600 m.

Question: 4

A 120 metre long train is running at a speed of 90 km/hr. It will cross a railway platform 230 m long in

(A) 7 seconds

(B) 10 seconds

(C) 14 seconds

(D) 18 seconds

Ans: C

Speed = $$(90 × {5}/{18})$$ m/sec = 25 m/sec.

Total distance covered = (120 + 230) m = 350 m.

∴ Required time = $$({350} / {25})$$sec = 14 sec.

Question: 5

A 160 m long train crosses a 160 m long platform in 16 seconds. Find the speed of the train.

(A) 70 km/hr

(B) 72 km/hr

(C) 74 km/hr

(D) 76 km/hr

Ans: B

Distance covered in passing the platform = (160 + 160) m = 320 m.

∴ Speed of train = $$({320}/{16})$$m/sec

= 20 m/sec = $$(20× {18}/{5})$$km/hr = 72 km/hr.

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