Question
Who among the following are
girls? Study the following information carefully and answer the questions given below: Eight students A, B, C, D, E, F, G and H have their practical exam on three different days, viz Monday, Wednesday and Friday. Two of them are girls who goes for practical exam on different days and like different subjects, but not Biology. Two of them likes Physics, two of them likes Chemistry, two of them likes Biology, one of them likes Botany and one of them likes Zoology. D goes for practical exam on Monday and likes Chemistry and her female friend G, who goes for practical exam on Friday and likes Physics. H likes Chemistry and goes for practical exam on the same days as B, who likes Biology, but does not goes for practical exam on Wednesday. C, is neither a girl nor likes Botany. No two students with the same subject goes for practical exam together. F likes Biology and goes for practical exam on Wednesday and his friend A likes Physics. A goes for practical exam on Monday with only one student. Not more than three students goes for practical exam on the same days. No girl goes for practical exam on Wednesday. E does not goes for practical exam on Friday and is not a girl.Solution
From a deck of 52, two cards are drawn. Find probability both are kings or both are queens.
If A and B are events such that P(A|B) = P(B|A), then which of the following is true
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