Multiple Choice Questions on How many terms does the following geometric progression 1 2 4 8 32768 have ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

How many terms does the following geometric progression 1 2 4 8 32768 have ........

Quantitative Aptitude ( CCS) Number System
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    How many terms does the following geometric progression 1, 2, 4, 8, - - - - - - - - 32768 have?

    13

    Incorrect Answer

    15

    Incorrect Answer

    16

    Correct Answer

    can’t be determined

    Incorrect Answer
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    Explanation:

    Formula of last term (nth term) in G.P series = ar^(n-1)
    ar^(n-1) = 32768
    (1×2)^(n-1) = 2^15
    2^(n-1) = 2^15
    n - 1 = 15
    n = 16
     

    By: MIRZA SADDAM HUSSAIN
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