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A weighted coin with the probability of ...

A weighted coin with the probability of showing a head is `(2)/(3)` is tossed. If head appears, then a number is selected from the the first 20 natural numbers otherwise a number is selected from the first 9 natural numbers. The probability of getting an even number is

A

`(1)/(2)`

B

`(13)/(27)`

C

`(10)/(27)`

D

`(5)/(13)`

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The correct Answer is:
B
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