Two cars move in the same direction alon...

Two cars move in the same direction along parallel roads. One of them is a `200m`, long travelling with a velocity of `20m//s`. The second one is `800m` long travelling with a velocity of `7.5m//s`. How long will it take for the first car to overtake the second car?

20 s

40 s

60 s

80 s

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