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7th Class Mathematics Related to Competitive Exam Question Bank Missing Character

  • question_answer
    Directions: In each of the following questions, a matrix of certain characters is given. These characters follows a certain trend, row-wise or column wise. Find out this trend and choose the missing character from the given alternatives.

    A) 4                                 

    B) 8

    C) 12                               

    D) 16

    Correct Answer: B

    Solution :

        In the first column, \[6\times 5\times 4=120.\] In the second column, \[6\times 7\times 3=126\] Let the missing number be x. Then in the third column, we have: \[8\times 5\times x=320\Rightarrow x=\frac{320}{40}=8.\]


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