SSC Government Jobs Exams Numerical Ability Algebra

If a, b, c, are three non-zero real numbers such that a + b + c = 0, and b2 ≠ ca, then the value of a2 + b2 + c2/ b2 –ca is-
Options
1) 3
2) 2
3) 0
4) 1

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SSC Other Question

If a4 + a2 b2 + b4 = 8 and a2 + ab + b2 = 4, then the value of ab is-

Options
1) -1
2) 0
3) 2
4) 1
If x+1/16x = 1, then the value of 64x3 + 1/64x3 is-

Options
1) 4
2) 52
3) 64
4) 76