IBPS Government Jobs Exams Numerical Ability Time Distance and Speed

Train A crosses a vertical pole at the speed of 15 m/s in 20 seconds. Speed of train A is 3 m/s less than the speed of train B and length of train B is 30 meter less than length of train A. Find the time taken by Train B to cross 270 meter long platform.
A)20 seconds B)15 seconds C)30 seconds D)45 seconds E)40 seconds

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