This question was previously asked in

SSC GD Constable (Held On: 18 Nov 2021 Shift 1) Memory Based Paper

- 350 m
- 450 m
- 500 m
- 800 m

Option 3 : 500 m

Ace your Quantitative Aptitude and Speed Time and Distance preparations for Problem on Trains with us and master Train Crossing a Platform for your exams. Learn today!

**Given:**

A 250 meters long train crosses a bridge 750 meters long in 20 seconds

And crosses a platform in 15 seconds.

**Formula Used:**

Distance = Speed × Time

**Calculation:**

Let the speed of the train be S

And let the length of the platform be x

According to the question,

250 + 750 = S × 20

⇒ S = 1000/20

⇒ 50 m/sec

Now, Again according to the question

The train crosses the platform in 15 seconds

250 + x = 50 × 15

⇒ x = 750 - 250

⇒ x = 500 m

**∴ The length of the platform is 500 m.**

India’s **#1 Learning** Platform

Start Complete Exam Preparation

Daily Live MasterClasses

Practice Question Bank

Mock Tests & Quizzes

Trusted by 2,30,08,783+ Students

Testbook Edu Solutions Pvt. Ltd.

1st & 2nd Floor, Zion Building,

Plot No. 273, Sector 10, Kharghar,

Navi Mumbai - 410210

[email protected]
Plot No. 273, Sector 10, Kharghar,

Navi Mumbai - 410210

Toll Free:1800 833 0800

Office Hours: 10 AM to 7 PM (all 7 days)