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

  • question_answer
    Directions: In each of the questions, there is some relationship according to some rule between the letters and numerals given in each row. Find the rule in each case and then choose the correct alternative from among the four alternatives given under it satisfying the same rule to fill in the vacant places in the third row.

    A) 4, 9         

    B) 9, 4

    C) 4, 10                           

    D) 9, 5

    Correct Answer: A

    Solution :

    We have: \[FJ={{(F-J)}^{2}}={{(6-10)}^{2}}=16;\] \[NS={{(N-S)}^{2}}={{(14-19)}^{2}}=25;\] \[LZ={{(L-Z)}^{2}}={{(12-26)}^{2}}=196;\] \[SX={{(S-X)}^{2}}={{(19-24)}^{2}}=25.\] So, the missing numbers are: (i) \[WY={{\left( W-Y \right)}^{2}}={{\left( 23-25 \right)}^{2}}={{\left( -2 \right)}^{2}}=4.\] (ii) \[NQ={{(N-Q)}^{2}}={{(14-17)}^{2}}={{(-3)}^{2}}=9.\]                      


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