If two trains moving at $v_{1}$ and $v_{2}$ crosses tunnels of lengths 160 m and 100 m respectively in the same time. Find the ratio of $v_{1} : v_{2}$ .

8 : 5

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5 : 8

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3 : 4

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4 : 3

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Insufficient data

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Solution

The correct option is E
Insufficient data

Let the length of the train be $l$

$\frac{160 + l}{v_{1}} = \frac{100 + l}{v_{2}}$

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