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In an examination, a student has to answ...

In an examination, a student has to answer 4 questions out of 5 questioins, questions 1 and 2 are however compulsory. Determine the number o f ways in which the student can make the choice .
Thinking Process: We know that in selection of r objects out of given n objects if p objects are included then total numbers of selection
are `((n-p),(r-p)).`

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The correct Answer is:
`= (3xx2)/(1xx2)=3`
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