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The probability of guessing the correct ...

The probability of guessing the correct answer to a certain question is `(x)/(3)` . If the probability of not guessing the correct answer is `(x)/(5)` , then find the value of x .

Text Solution

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`(x)/(3) + (x)/(5) = 1`
`(5x + 3x)/(15) = 1 `
`(8x)/(15) = 1`
8x = 15
`x = (15)/(8)`
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