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a husband and wife are appeared in an interview for the same post.the probability of husband's selection is 1/5 and wife's is 1/7.what is the probability of
a)only one of them will be selected
b)both of them will be selected
c)none of them will be selected
a)(1/5)(1-(1/7))+(1/7)(1-(1/5))
b)(1/5)(1/7)
c)(1-(1/5))(1-(1/7))
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