An urn contain 20 tickets numbered 1 to 20. A ticket is drawn and then another ticket is drawn with replacement. The probability that both the tickets show even number is:
A
938
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B
18
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C
14
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D
58
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Solution
The correct option is B14
Given: an urn containing 20 tickets, and 2 tickets are drawn with replacement
To find: the probability that both the tickets show even number
According to the question
n(S)=20
There are 10 even numbers between 1 to 20.
Therefore, the probability that both the tickets show even number is