Below is the question:
A question paper contains 6 questions each having an alternative. The number of ways an examiner can answer one or more questions is:
Answer is 728.
Kindly help me out on how the question is to be solved.
Rinkesh (BBA) (41 Points)
16 March 2012Below is the question:
A question paper contains 6 questions each having an alternative. The number of ways an examiner can answer one or more questions is:
Answer is 728.
Kindly help me out on how the question is to be solved.
Anubhav
(Chartered Accountant)
(429 Points)
Replied 17 March 2012
CA Sahil Singla..
(Service Tax )
(3746 Points)
Replied 17 March 2012
Dear Rinkesh
SInce each question has an alternative so there are 3 ways to answer each of the six questions -
1. 1st Alternative
or
2. 2nd Alternative
or
3. No answer
So there are 3 possiblities for each of the 6 questions. Therefore total no. of ways in which a question paper can be answered = 3*3*3*3*3*3 = 729
But in ur case atleast one question must be answered.
The way in which no answer is given to any of the question comes to 1
So in ur case answer = 729-1 =728
Maths Hospital vipin sir
(4 Points)
Replied 11 October 2018
Maths Hospital vipin sir
(4 Points)
Replied 11 October 2018
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