SOLUTION: A student is asked to answer 9 out of 15 questions on an exam. In how many ways can she select the questions to be answered?
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Question 483767: A student is asked to answer 9 out of 15 questions on an exam. In how many ways can she select the questions to be answered? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A student is asked to answer 9 out of 15 questions on an exam. In how many ways can she select the questions to be answered?
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Ans 15C9 = 15C6 = (15*14*13*12*11)/(1*2*3*4*5) = 5005 ways
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Cheers,
Stan H.
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