N an objective exam which has 2 answer options each for all the 20 questions.what is the probability that sushant answers all the questions correctly?
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If there is 20 ques each have 2 option that there are 40 answer then the probability will be 1/2
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The probability of correct answer is 1/2.
Given:
There are 20 questions in total and each question has two options.
To find:
The probability of correct answer.
Solution:
Total number of questions is 20.
Every question has two options as answers.
So there are 20×2 i.e. 40 answers in total.
However,only 20 out of them are correct.
We know,
Probability of an event = Favourable outcomes/ Total outcomes
P= 20/40
=1/2
Hence, The probability that Sushant answers all the questions correctly is 1/2.
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