Multiple Choice Questions on If 2a 3b 5a 3b 23 5 then the value of ba is ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

If 2a 3b 5a 3b 23 5 then the value of ba is ........

Quantitative Aptitude ( CCS) Ratio, Proportion
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    If (2a + 3b)/(5a - 3b) = 23/5 , then the value of ba is ?

    5

    Incorrect Answer

    4

    Incorrect Answer

    20

    Correct Answer

    28

    Incorrect Answer
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    Explanation:

    Given (2a + 3b)/(5a - 3b) = 23/5
    => 10a + 15b = 115a - 69b
    => 105a = 84b => 5a = 4b
    a/b = 4/5 => a=4 & b=5
    => bxa = 5x4 = 20.

    Hence, opton 3 is the correct answer.

    By: Amit Kumar
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