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    5. If (77⁷⁷  + 77) is divided by 78, then the remainder will be:

    Question

    If (77⁷⁷  + 77) is divided by 78, then the

    remainder will be:
    A 76 Correct Answer Incorrect Answer
    B 77 Correct Answer Incorrect Answer
    C 78 Correct Answer Incorrect Answer
    D 1 Correct Answer Incorrect Answer

    Solution

    We need to find the remainder when  7777 + 77 is divided by 78. Since 77 ≡ −1mod78, then, 7777 ≡ (−1)7 ≡ −1 mod78. Hence, ans is 76

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    • SSC CGL

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