Question

    (64/25)? ×  (125/512) ? - 1  =

    5/8
    A 2 Correct Answer Incorrect Answer
    B 8 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 3 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ⇒   (8/5)2x  × (5/8) 3x - 3   = 5/8 ⇒   (5/8) -2x  × (5/8) 3x - 3   = 5/8 ⇒   (5/8) -2x + 3x - 3 = 5/8 ⇒   (5/8) x - 3  = 5/8 ⇒   x - 3 = 1 ⇒   x = 4 

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