Logic Quiz

[SID_NY]

Re: Logic Quiz

@MustafaQuraishi

okay, so since the @psyah question is done. I have next question

There are 4 people who need to cross the bridge. Each one has different walking speed.

A can cross the bridge in 3 minute
B can cross the bridge in 4 minutes
C can cross the bridge in 9 minutes
D can cross the bridge in 12 minutes

At any given time, bridge can hold the wait of maximum 2 people. And to cross the bridge, a torch/candle is required. A bridge can’t be crossed without the torch/candle.

What will be the smallest interval of time you guys can pair up the people to cross the bridge.

p.s:
The question is similar to the one i asked earlier in which you guys had to find minimum repitition to find the lightest ball. There could be multiple answers but what i am looking for is “smallest time require to cross the bridge”. So I wouldn’t be saying that your answer is wrong or right just because your number is higher than the smallest. I will just wrote the answer (or will tell who figured out the answer) once everyone is done writing their answers.

Assuming they all are going from point X to point Y, my answer is 15.