SOLUTION: A student must answer ten questions on an exam that contans twenty-five questions. How many ways can this be done?

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Question 464878: A student must answer ten questions on an exam that contans twenty-five questions. How many ways can this be done?
Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
A student must answer ten questions on an exam that contans twenty-five questions. How many ways can this be done?
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Ans: 25C10 = 3,268,760
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Cheers,
Stan H.
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Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


You need to calculate the number of ways 10 things can be selected from 25 things where order doesn't matter, that is to say you need the number of combinations of 25 things taken 10 at at time. Use which is the number of combinations of things taken at a time and is calculated by

John

My calculator said it, I believe it, that settles it
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