Wednesday, November 9, 2011

Interview Puzzles and Answers

River Crossing Puzzle

Four people need to cross a rickety rope bridge to get back to their camp at night. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. The bridge is too dangerous to cross without a flashlight, and it’s only strong enough to support two people at any given time. Each of the campers walks at a different speed. One can cross the bridge in 1 minute, another in 2 minutes, the third in 5 minutes, and the slow poke takes 10 minutes to cross. How do the campers make it across in 17 minutes?

Solution: Send 1 and 2 first, 1 comes back, send 5 and 10, 2 comes back, send 2 and 1 to the other side.

3 Baskets Puzzle

There are three baskets labeled Orange , Apple, Oracle/Apple. And all of them have wrong labels.How to find the correct label by checking only one basket

Open the Orange/Apple basket. If we get Apple then basket labeled as Orange will be "Orange/Apple" basket.


Sanjay Singh Rajput said...


Unknown said...

plz explain more

Unknown said...
This comment has been removed by the author.
Unknown said...

plz explain more

abhi said...

Suppose as per puzzle

If Orange labeled box is opened it will have apple, thus you know now it should be labeled as Apple.
And Apple labeled box should have oracle(as none of the box has content as per the label) and similarly for Oracle labeled box.

Unknown said...

More Interview Puzzles

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