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7th Class Mental Ability Puzzle Test Question Bank Puzzle Test

  • question_answer
    Eight books are kept one over the other. Counting from the top, the second, fifth and sixth books are on Plays. Two books on Plays are between two books on Composition. One books of Plays is between two books on poetry while the book at the top of the book of Literature is a book of Composition. Which book is fourth from the top?

    A)  Plays    

    B)         Poetry

    C)  Composition    

    D)         Literature

    Correct Answer: C

    Solution :

     We analyse the given information as follows:  Let C denote 'Composition', P denote, 'Plays', Po denote 'Poetry' and L denote 'Literature'
    1 2 3 4 5 6 7 8
    - P - - P P - -
    - - - C P P C -
    Po P Po - - - - -
    - - - - - - C L
    So, the arrangement from top to bottom becomes:                                      
    1 2 3 4 5 6 7 8
    Po P Po C P P C L
    Clearly, the fourth book from the top is on Composition. Hence, the answer is [c]. (14 to 17) F is a boy and sits with only B. Since A sits on bench I and G on bench III, so B and F sit on bench II. Since there is at least one girl on each bench, so B is a girl. C doesn't sit with A, E and D. So, C may sit with B, F and or G. But B and F sit together. So, C sits with G on bench III. Since C is a girl, so G may be a boy or a girl. Thus, the remaining 3 students ? A, D and E - sit on bench I. A is a boy, E (brother of C) is a boy. So, D must be a girl.


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