1.

If `n(A)=x, n(B)=2[n(A)], n(A uu B)=2017` and `n(A nn B)=1007`. Find the value of `x`.

Answer» Correct Answer - 1008
Given `n(A)=x, n(B)=2[n(A)]=2x`
`n(A uu B)=2017, n(A nn B)=1007`
`n(A uu B)=n(A)+n(B)-n(A nn B)`
`2017=x+2x-1007`
`3x=3024`
`x=1008`


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