Fredy decided to go on a long drive with his girl friend on a deserted highway to discuss about his marriage with a condition that, if she solves the puzzle – Fredy will marry her, otherwise he will say bye to her on the highway. Fredy asked his girl friend, on this deserted highway, the probability of observing a car during a thirty-minute period is 95 percent. What is the chance of observing a car in ten-minute period? Please help her to marry Fredy!

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can i get the soln?

Solution will be posted tomorrow evening. Please try solving it.

31.6 %

Rahul, you have missed one assumption while solving perhaps you got the different answer

approximate 32 %

its 63.1 %

Good One! Please give us the steps!

Let p be the probability of seeing a car in 10

Then probability of not seeing a car is

1-p

so (1-p)^3=0.05

so p=0.631.

Let p is a probability to see a car in 10 minutes.

Then (1-p) is probability NOT to see a car in 10 minutes.

Then probability NOT to see a car in 30 minutes is (1-p)*(1-p)*(1-p).

(1-p)^3 == 0.05

So p = 1-0.05^(1/3)~ 0.63

Thanks Rishabh for the steps! Good one!

ur welcome sir!!!

63.1%

63.1% sir