Multiple Choice Questions on a b c and abc 30 then what is the value of a3 b3 ndash c3 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

a b c and abc 30 then what is the value of a3 b3 ndash c3 ........

Quantitative Aptitude ( CCS) Number System
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    a+b = c and abc = 30, then what is the value of a3 + b3 – c3 ?

    60

    Incorrect Answer

    90

    Incorrect Answer

    -90

    Correct Answer

    -60

    Incorrect Answer
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    Explanation:

    a3 + b3 – c3
    = -3(abc)
    = -3(30) = -90

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