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## #1 2016-10-18 04:47:23

### Speed Time And Distance Quiz Question.

# Mathematics Quizzes Speed Time And Distance

**Question:**

A train crosses a pole in 15 second and a platform 100 metres long in 25 seconds, its length (in meters) is

**Option A):**

100 m**Option B):**

200 m**Option C):**

150 m**Option D):**

50 m

**Correct Answer is Option C):**

150 m

**Explanation:**

It's '150 m'

Let the length of the train be x meter.

Speed of train = length of the train / time taken to cross the pole

= x/15 m/s

And, the train crosses a platform of 100 meter long in 25 seconds,

Therefore, speed of train will be,

= (x + 100)/25 m/sec

But,(x/15)= (x + 100)/25

→ (x/3) = (x + 100)/5

→ 5x = 3x + 300

→ x=150 metes

Hence, the length of the train will be 150 meters.

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## 2016-10-18 04:47:23

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### Re: Speed Time And Distance Quiz Question.

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