The length of train X is equal to the combined length of trains Y and Z. The length of train Z is 20% more than the length of train Y. Train Y runs at...

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The length of train X is equal to the combined length of trains Y and Z. The length of train Z is 20% more than the length of train Y. Train Y runs at a speed of $50 \text{ m/s}$ and crosses a pole in $6$ seconds. Train X runs at a speed of $40 \text{ m/s}$ and crosses train Z in $17$ seconds while running in opposite directions. What is the speed of train Z (in meters/second)?

Options

$25$

$15$

$30$

$20$

$40$

trainsspeedlengthtimeopposite direction

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The length of train X is equal to the combined length of trains Y and Z. The length of train Z is 20% more than the length of train Y. Train Y runs at...

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