# Car on highway probability

Posted by Interview
If the probability of observing a car in X minutes on a highway is P, what is the probability of observing a car in X/N minutes (assuming constant default probability)?

X,P,N - can take form of specific numbers like

X=30 minutes

P=0.80

N=10 minutes

X,P,N - can take form of specific numbers like

X=30 minutes

P=0.80

N=10 minutes

**Company where asked this question:**Google, Microsoft