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Thirteen cubes of the same size numbered 1 to 13 are placed in a bag. If two cubes are drawn at random from the bag one after the other and not replaced, what is the probability that

 

(i) both cubes are odd numbered,

(ii) only one is even numbered.
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The probability of drawing two cubes with consecutive numbers from a bag of 13 cubes is 1/78.
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