Question

The probability of guessing the correct answer to a certain question is x6 ,
If the probability of not guessing the correct answer is 23 , then find x
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Answer 1

Answer:

Here, probability of guessing the correct answer = x / 2

And probability of not guessing the correct answer = 2 / 3

Now, x / 2 + 2 / 3 = 1

⇒ 3x + 4 = 6

⇒ 3x = 2

⇒ x = 2 / 3