Suppose an integer from 1 through 1000 is chosen at random, find the probability that the integer is a multiple of 2 or a multiple of 9.

Explanation

`n(S)=1000`

`P(AuuB)=P(A)+P(B)-P(AnnB)`

A: integer which is multiple of 2

B: integer which is multiple of 9

`P(A)=500/1000`

`P(B)=111/1000`

`P(AnnB)=55/1000`

`P(AuuB)=P(A)+P(B)-P(AnnB)`

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