If a³ + b³ = 218 and a + b = 2, then the value of ab is ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 ie -35
a³ + b³ = 218 [value putting]
a + b = 2
7 - 5 = 2
a = 7, b = -5
ab = 7(-5) = -35
SSC CGL 2019 PYQ — Question 86
SSC CGL Tier II Quant - 11/09/2019 • Quantitative Aptitude • Q86