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In how many ways can the ten questions be selected

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Reference no: EM131557818

Question: EXAMS A student taking an examination is required to answer exactly 10 out of 15 questions.

a. In how many ways can the 10 questions be selected?

b. In how many ways can the 10 questions be selected if exactly 2 of the first 3 questions must be answered?

Reference no: EM131557818

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