Question

If the ratio of speed of train C and Train D is 5:8 and

Q: Answer-If the ratio of speed of train C and Train D is 5:8 and takes 20 seconds to completely cross each ot...

Let the speed ratio of two trains be 5x and 8x respectively. Let the ratio of their lengths be 4y and 3y respectively. Speed Distance Time When travelling in same directions, gt 8x-5x 4y3y20 gt 3x 7y20 Hence, we donrsquot have any value given here so the answer will be cannot be determined.

takes 20 seconds to completely cross each other in same direction. If the ratio of their length is 4:3 then find the speed of slow train.

A 16 kmph

B 21 kmph

C 18 kmph

D Cannot be determined

E None of these

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If the ratio of speed of train C and Train D is 5:8 and

Solution