Multiple Choice Questions

a b c and abc 30 then what is the value of a 3 b 3 ndash c 3 ........

Quantitative Aptitude (CCS) Algebra

a+b = c and abc = 30, then what is the value of a^3 + b^3 – c^3 ?

-90

-60

a^3 + b^3 – c^3
= -3(abc)
= -3(30)
= -90
Hence, option 3 is the correct answer.

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