Maths-
General
Easy

Question

An examination paper, which is divided into two groups consisting of 3 and 4 questions respectively carries the note it is not necessary to answer all the questions One question atleast should be answered form each group The number of ways can an examinee select the questions is

  1. 22    
  2. 105    
  3.  blank cubed straight P subscript 3 cross times to the power of 4 straight P subscript 4
  4. blank cubed straight C subscript 3 cross times to the power of 4 straight C subscript 4

The correct answer is: 105


    open parentheses 2 cubed minus 1 close parentheses open parentheses 2 to the power of 4 minus 1 close parentheses

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