Question

Train A takes 90 seconds to cross a telegraph pole by travelling at 18 kmph speed. Train B has its length 60% more than
A. It takes 40 seconds to cross a pole. Find the time(in seconds) taken by train B to overtake train
A.

Q: Answer-Train A takes 90 seconds to cross a telegraph pole by travelling at 18 kmph speed. Train B has its l...

Let the length of A be x m. Given, x18 518 90 x 450 Length of B 450 60100 450 450 270 720 m Speed of B 72040 18 ms. Required time 450720 18-5 117013 90 seconds.

A 90 sec

B 110 sec

C 300 sec

D 210 sec

E None of these

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Train A takes 90 seconds to cross a telegraph pole by travelling at 18 kmph speed. Train B has its length 60% more than
A. It takes 40 seconds to cross a pole. Find the time(in seconds) taken by train B to overtake train
A.

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Train A takes 90 seconds to cross a telegraph pole by travelling at 18 kmph speed. Train B has its length 60% more thanA. It takes 40 seconds to cross a pole. Find the time(in seconds) taken by train B to overtake trainA.

Detailed Solution

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Train A takes 90 seconds to cross a telegraph pole by travelling at 18 kmph speed. Train B has its length 60% more than
A. It takes 40 seconds to cross a pole. Find the time(in seconds) taken by train B to overtake train
A.