Let A = { 1,3,5,7,9 } and B= { 2,4,6,8 }...

Let `A = { 1,3,5,7,9 } and B= { 2,4,6,8 }`. An element `(a,b)` of their cartesian product `Axx B` is chosen at random. The probability that `a + b = 9` is

A

`3//2 `

B

`3//4`

C

1

D

`1//5`

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The correct Answer is:

D

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