state gov BSSC LDC (Ex-Servicemen) Mock Test Series 2025 Quantitative Aptitude Algebra Identities

यदि a + b + c = 9 और a3 + b3 + c3 – 3abc = 27 है तो, ab + bc + ca का मान क्या है? 

1
24
2
26
3
28
4
22
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