Here's a short story:

Would you like to join an all-women' s expedition to Annapurna? You must be an experienced high altitude climber, strong, enthusiastic and a hard worker! If you think this is for YOU, please contact: Arlene Blum, Berkeley, California, USA. 

Many women wrote to them from all over the world, but they could only choose ten. When the final team was chosen, the youngest was twenty years old, the oldest was fifty. 

For Arlene, finding the climbers was only the first step. The team needed another important thing: money. There were long talks at Vera Watson' s house, when they discussed how to make the 80,000 dollars they would need for the expedition. With the help of enthusiastic friends, they organized dances, sports, and parties. They even sold expedition T- shirts. After many months, and a lot of hard work, they finally had the money they needed. 

Now at last they were in Kathmandu, the city where their great adventure would begin. Arlene looked round at the women in the airport. They looked tired after the long journey from Francisco, but happy to be in Nepal at last. There had been so many friends and families at the airport to say goodbye. It had been difficult to leave the people they loved. Irene had looked so sad when she said goodbye to her daughters. Arlene had found it very difficult to leave her boyfriend, John. For all of them there was the chance that they would never see their families or friends again. 

All climbing in the Himalayas is dangerous. One in ten of the people who go there do not come back. Annapurna was very dangerous because of its avalanches. Arlene knew the avalanches very well. On the expedition film she said... (End of story)

Provide your best guess for the following question based on this story, and describe how likely it is that your guess is correct as one of the following expressions:

Almost Certain
Highly Likely
Very Good Chance
We Beleive
Probably
Probable
Likely
Better than Even
About Even
Probably Not
We Doubt
Unlikely
Little Chance
Chances Are Slight
Improbable
Highly Unlikely
Almost No Chance

Give ONLY the guess and your confidence, no other words or explanation. For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>
Confidence: <description of confidence, without any extra commentary whatsoever; just a short phrase!>

Here are a few examples of questions and answers:

Question: What are the qualifications to Join an all-woman expedition to Annapurma?
Guess: be an experienced high altitude climber
Confidence: <appropriate level of confidence in this guess>

Question: Are there any others?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: What are they?
Guess: strong, enthusiastic and a hard worker
Confidence: <appropriate level of confidence in this guess>

Question: What else did Ariene Blum need to find besides climbers?
Guess: money.
Confidence: <appropriate level of confidence in this guess>

Question: what were some of the things done to earn the money they needed?
Guess: they organized dances, sports, and parties
Confidence: <appropriate level of confidence in this guess>

Question: What city would their adventure begin?
Guess: Kathmandu
Confidence: <appropriate level of confidence in this guess>

Question: How many people who go to the Himalays don't come back?
Guess: One in ten
Confidence: <appropriate level of confidence in this guess>

Question: why is it so dangerous?
Guess: because of its avalanches
Confidence: <appropriate level of confidence in this guess>

Question: What did Ariene discuss at Vera Watson's house?
Guess: how to make the 80,000 dollars
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: How old was the youngest of the group of people for the trip?

twenty