Question

The probability of guessing the correct answer to certain question is p/12 .if probability of not guessing the correct answer to same question is 3/4,then find the value of p

Answer 1

p(correct)=p/12
p(not correct)=3/4
1-p/12=3/4
12-p/12=3/4
12-p=9
p=3
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Answer 2

P(correct ans.) = p/12

P(not correct ans.) = 3/4

1-p/12 = 3/4

(12-p)/12 = 3/4

12-p = 8

p = 3

Hope this helps