Published by:
CGP EDU Academic Team
Published on: August 13, 2026
In a multiple choice question there are 4 alternative answers of which 1, 2, 3 or all may be correct. A candidate will get marks in the question only if he ticks all the correct answer. The candidate decides to tick answers at random. If he is allowed upto 5 chances to answer the question, If the probability that he will get the marks in the question is p then 3p equals
Text Solution
Verified by ExpertsThe correct answer is:
1
(1)
Sol. P(c) = 
= 
= 
; P(correct ) = 1 – P (all wrong)
= 1 – 
= 
.
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