Question
A thief steals a car at 2.30 p.m. and drives it at 60 kmph. The theft is discovered at 3 p.m. and the owner sets off in another car at 75 kmph. When will he overtake he thief ?
Answer: Option C
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Suppose he thief is overtaken `x` hrs after 2.30 p.m.
Then , distance covered by he thief in `x` hrs. = distance covered by the owner in `(x - 1/2)` hrs.
`:.` `60x = 75(x - 1/2)`
`hArr 15x = 75/2 hArr x = 5/2` hrs.
So, the thief is overtaken at 5 p.m.
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