there are five keys to five cars. what is the probability that someone picks up one of the keys and opens one of the cars?

Question

anonymous · Answer

Oh! what I mean is - he goes straight to the correct car.

anonymous · Answer

So the key that you have can open only one of five car, so I believe that probability is 1/5

anonymous · Answer

correct imran - its surprising how many people say 1/25

anonymous · Answer

1/5

anonymous · Answer

1/25, i agree. My test tonite is on the same thing.

anonymous · Answer

you agree with 1/25? that doesn't seem right....the chances that you will pick a key are 1:1...that key will open the car 1:5...the picking of the key doesn't change those odds. 1/5...20%