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A man and his wife appear for an intervi...

A man and his wife appear for an interview for two posts. The probability of the husband's selection is 1/7 and that of the wife's selection is 1/5. What is the probability that only one of them will be selected

A

a) 1/7

B

b) 2/7

C

c) 3/7

D

d) None of these

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