If n(A)=1200, n(B)=1250 and n(AintersectionB)=320, then n(AUB) is

Discussion in 'Calculator Requests' started by math_celebrity, Apr 1, 2020.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    If n(A)=1200, n(B)=1250 and n(AintersectionB)=320, then n(AUB) is

    We know that:
    n(AUB) = n(A) + n(B) - n(AintersectionB)

    Plugging in our given numbers, we get:
    n(AUB) = 1200 + 1250 - 320
    n(AUB) = 2130
     

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