Logic Quiz

[psyah]

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.

I answered your previous question without seeking clarification so now I am seeking clarification. Please detail the significance of the candle more carefully at the moment it holds no relevance to the puzzle. Who lights the candle? Who holds the candle? Is it the same candle? What does it mean? “Bridge can’t be crossed without candle” … If you give them a candle each it makes the candle irrelevant … i’m guessing you only have one candle and it needs to remain on the bridge while all four have crossed. Please clarify …