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    Question

    Find the 5th term of the geometric

    progression whose first term is 128 and common multiple is 1/2.
    A 8 Correct Answer Incorrect Answer
    B 6 Correct Answer Incorrect Answer
    C 12 Correct Answer Incorrect Answer
    D 16 Correct Answer Incorrect Answer

    Solution

    a = 128, r = 1/2 5th term = 128 × [1/2]5 - 1 ⇒ 128 × [1/2]4 ⇒ 128 × 1/16 ⇒ 8 ∴ The 5th term in progress ion is 8.

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