Q. The probabilityof guessing the correct answer to a certain question is x/3 .If probability of not guessing correct answer is x/5 then find value of x. HEYYY DONT GIVE LINKS IT HAVE DIFFERENT VALUES I WANT A SPECIFIC ANSWER so NO LINKS PLZ EXPERTS PLZ ANS FAST

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Answers

2016-03-18T21:28:50+05:30
We know that the sum of P(E) and P(not E) is equal to 1.
Therefore, x/3+x/5=1
(5x+3x)/15 = 1
8x=15
x=15/8
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2016-03-18T21:31:35+05:30
LET THE Sample space be n(S)
n(S)=1
thus x/3 + x/5=1
3x+5x=15        (taking LCM)
x=15/8
HAPPY?
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