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Question

Question 51.What is the speed of the train?

1. The train crosses a signal pole in 13 seconds

2. The train crosses a platform of length 250 meters in 27 seconds

3. The train crosses another train running in the same direction in 32 seconds


A

(a) 1 and 3

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B

(b) 2 and 3

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C
(c) 1 and 2
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D
(d) 1, 2 and 3
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Solution

The correct option is C (c) 1 and 2

Answer 51.(c) Statement 1 and 2 are necessary to answer the question.

1+2 = The train crosses platform 9250 m) in 27-13=14 seconds

Therefore speed of the train = 250/14 m/sec.

Note that Statement (3) does not give the length or speed of the second train, so it is useless.


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