railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Algebra

If a + b + c = 1, ab + bc + ca = –20 and abc = –40, then what is the value of a3 + b3 + c3?

1
–59
2
–50
3
–45
4
–35
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