Cross the bridge puzzle games

Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge? A and B cross first using up 2 minutes.

A comes back making it 3 C and D cross making it 13 minutes then B crosses back over making it 15 minutes. And finally A and B cross together to make it 17 minutes! B returned and he took 2 min. Assumption: — If two person walks together they will move according to the person walking slower than the other one because of torch constraint. By clicking "Sign up" you indicate that you have read and agree to the privacy policy and terms of service. Crossing the Bridge Puzzle. Add comment. Votes Oldest.

SherlockHolmes Expert Answered on 4th September First Assume that A takes 1 min. Therefore, The shortest time is 17 min. John Shepherd Starter Answered on 5th December Assumption: A person carrying the torch illuminates the whole bridge.

Representation: b2 — destination end b1 — starting end people — p1 p2 p7 p10 number denotes time taken for crossing Solution: 13 mins. Your Answer. Post answer. By posting your answer, you agree to the privacy policy and terms of service.

What is the logic behind these? Read More ». There are 10 stacks of 10 coins each. Each coin weights 10 gms. However, one stack of coins is defective Which clock works best?

Paul, Sam and Dean are assigned the task of figuring out two numbers. They get the following information: Both numbers The pirates are all Two fathers took their sons to a fruit stall. Each man and son bought an apple, But when they returned A farmer is taking her eggs to the market in a cart, but she hits a pothole, which knocks over Let it be simple and as direct as possible. By posting your answer, you agree to the privacy policy and terms of service.

What is the logic behind these? Read More ». There are 10 stacks of 10 coins each. Each coin weights 10 gms. However, one stack of coins is defective Which clock works best?

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