top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

After a company event, a group of engineers get lost and find themselves at an old and rickety bridge. They all need....

0 votes
101 views

After a company event, a group of engineers get lost and find themselves at an old and rickety bridge. They all need to cross, but they face several difficulties. The bridge is so old and narrow that it can only hold 2 people at a time. They only have 1 torch, and it is so dark the torch must be carried when crossing. Each person can cross the bridge alone in a different amount of time. When 2 people cross the bridge together, they cross at the slower person’s time.

What is the fastest time they can cross the bridge? Solve for these crossing times.

Puzzle 1
Four people
A crosses in 1 minute
B crosses in 4 minutes
C crosses in 5 minutes
D crosses in 8 minutes
Puzzle 2
Four people
A crosses in 1 minute
B crosses in 2 minutes
C crosses in 5 minutes
D crosses in 8 minutes

Puzzle 3
Six people
A crosses in 1 minute
B crosses in 4 minutes
C crosses in 5 minutes
D crosses in 8 minutes
E crosses in 9 minutes
F crosses in 12 minutes

posted Nov 25 by Basabdatta Mukherjee

Looking for solution? Promote on:
Facebook Share Button Twitter Share Button LinkedIn Share Button




Similar Puzzles
0 votes
Average score of a group of a athlete was 42 in certain event. When a new athlete join the group and scores equal.......

Average score of a group of a athlete was 42 in certain event.
When a new athlete join the group and scores equal to 250% of the average score of the group, then average of a group increases by 30%.
How many athletes were there in a group before joining of a new athlete?

0 votes
On a new year day, two old friends John and Jacob meet at a party. As they met after a long time Jacob wanted...........

On a new year day, two old friends John and Jacob meet at a party. As they met after a long time Jacob wanted John to guess his birthday. As both friends are not in touch for a long time John was unable to guess his birthday. So Jacob decided to give some hints. Below are the hints:

The day before yesterday I was 30 and next year I will be 33, then Jacob asked John to find his birthday.
Hint: The above condition can be true for only one day in the year

+2 votes
A king is on a cross-sea voyage and as soon as they get off ..... After several days he finally comes up with an answer.

A king is on a cross-sea voyage and as soon as they get off of their boats he spots the most beautiful elephant he has ever seen. He decides to take it home, but first, he wants to know its weight.

The largest scale they brought only goes up to 50 pounds. The king demands that his smartest scholar must come up with a solution or pay the consequences. After several days he finally comes up with an answer.

+1 vote
If on an item a company gives 35% discount, they earn 20% profit. If they now give 20% discount then....................

If on an item a company gives 35% discount, they earn 20% profit.
If they now give 20% discount then what is the profit percentage?

0 votes
A group of cops are after a murderer. They do not know anything.........The cops arrested the suspect. Who, how and why?

A group of cops are after a murderer. They do not know anything about the suspect, only the name, which is Carl.

One day, the cops knew where the suspect is, which is inside an old apartment. When the cops went in, they saw 4 people inside.

A Carpenter
A mechanic
A maintenance man
A bus driver

The cops arrested the suspect. Who, how and why?

...