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OlympiadBench / 2255 / A 75 year old person has a 50% chance of living at least another 10 years.
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
A 75 year old person has a chance of living at least another 10 years.
A 75 year old person has a chance of living at least another 15 years. An 80 year old person has a chance of living at least another 10 years. What is the probability that an 80 year old person will live at least another 5 years?
Plain-text mathematical notation (without MathML)
A 75 year old person has a 50% chance of living at least another 10 years. A 75 year old person has a 20% chance of living at least another 15 years. An 80 year old person has a 25% chance of living at least another 10 years. What is the probability that an 80 year old person will live at least another 5 years?
Original LaTeX notation
A 75 year old person has a $50 \%$ chance of living at least another 10 years. A 75 year old person has a $20 \%$ chance of living at least another 15 years. An 80 year old person has a $25 \%$ chance of living at least another 10 years. What is the probability that an 80 year old person will live at least another 5 years?
answer type
Numerical
is multiple answer
false
language
English
question type
Open-ended
subject
Math
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