Latest HR Interview Aptitude Question SOLUTION: At a car park there are 100 vehicles, 60 of which are cars, 30 are vans and the remaining are Lorries. If every vehicle is equally likely to leave, find the probability of car leav

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(#M40037784) HR INTERVIEW Logical Reasoning question tcs Keep an EYE

At a car park there are 100 vehicles, 60 of which are cars, 30 are vans and the remaining are Lorries. If every vehicle is equally likely to leave, find the probability of car leaving second if either a lorry or van had left first :

Asked In HR Interview PRIYA (9 years ago)

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Loknath Sarkar  (9 years ago)

60/99
i m not sure..pls correct me if i m wrong

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Akshara  (9 years ago)

Let S be the sample space and A be the event of a van leaving first. n(S) = 100 n (A) = 30 Probability of a van leaving first: P (A) = 30/100 = 3/10 Let B be the event of a lorry leaving first. n (B) = 100 - 60 - 30 = 10 Probability of a lorry leaving first: P (B) = 10/100 = 1/10 If either a lorry or van had left first, then there would be 99 vehicles remaining, 60 of which are cars. Let T be the sample space and C be the event of a car leaving. n (T) = 99 n(C) = 60 Probability of a car leaving after a lorry or van has left: P(C) = 60/99 = 20/33

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SAHIDUL HASAN  (9 years ago)

(60/100+10/100)+(30/100*10/100)=.09

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