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  5. Inserting Missing Number

4th Class Mental Ability Inserting Missing Number Question Bank Inserting Missing Number

  • question_answer
    Find the missing number in the place of question mark in the following:
    2 5 ?
    6 4 8
    5 8 9
    60 160 504

    A) 6                        

    B)                   7

    C) 9                         

    D)       14

    E) None of these

    Correct Answer: B

    Solution :

    Explanation: Option (b) is correct. \[2\times 6\times 5=1\times 5=60\] \[5\times 4\times 8=20\times 8=160\] Similarly, \[?\times 8\times 9=504\] So the missing number is \[\]


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