Question

    289      169        121         ? 

          25         9
    A 45 Correct Answer Incorrect Answer
    B 49 Correct Answer Incorrect Answer
    C 30 Correct Answer Incorrect Answer
    D 35 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    172 = 289 132 = 169 112 = 121 72 =  49 52 = 25 32 = 9

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