Four tickets marked 00, 01, 10 , 11 resp...

Four tickets marked 00, 01, 10 , 11 respectively are placed in a bag. A ticket is drawn at random five times being replaced each time. The probability that the sum of the numbers on the tickets is 22 is

`2//7`

`25//256`

`231//256`

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DIPTI PUBLICATION ( AP EAMET)-PROBABILITY-EXERCISE-1A

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