The Adventurer’s Puzzle

Minimum Number of People:  The Adventurer’s Puzzle

Solve The Adventurer’s Puzzle here on this page.
An adventurer wants to go to the treasure island. The journey will take him a total of 6 days to reach, however due to limited space, he can carry only 4 days worth of food and water. What is the minimum number of people he should take with him, such that he has enough food for the journey. Given every person he can take along will be able to carry 4 days worth of food only.

The Adventurer's Puzzle

Minimum Number of People

The Adventurer’s Puzzle

Solve The Adventurer’s Puzzle here on this page.
An adventurer wants to go to the treasure island. The journey will take him a total of 6 days to reach, however due to limited space, he can carry only 4 days worth of food and water. What is the minimum number of people he should take with him, such that he has enough food for the journey. Given every person he can take along will be able to carry 4 days worth of food only.

The Adventurer's Puzzle

Solution

minimum number of people

The minimum number of people he can take are 2. 

So among the adventurer and two companions say A and B, they will have the following distribution of food:

Adventure – 4 days

Helper 1-4 days

Helper 2-4 days

On Day 1: All three of them will use Helper 1’s food and water. At the end of day 1, Helper 1 will leave the team, and return back. He will still have 1 day worth of food helping him in return journey

On Day 2: Adventurer and Helper 2 will use Helper 2’s food and water. At the end of day 2, Helper 2 will leave and return back. He will now have 2 days of food to help him in return journey.

After Day 2, Adventurer has 4 days worth of food which he will use for the journey for 4 days and reach his destination on 6th day.

minimum number of people
The Adventurer's Puzzle
The Adventurer's Puzzle