SSC CPO 2022 PYQ — Question 135

SSC CPO - 11 Nov 2022 - Shift 1 • Quantitative Aptitude • Q135

If x(x - 5) = -1, then the value of x3(x3 - 110) = ?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. -1

If x(x - 5) = -1

x + 1/x = 5

Cube on both sides

x3 + 1/x3 = 125 - 15 = 110

x3(x3 - 110) = -1