SSC CGL 2018 PYQ — Question 84

SSC CGL Tier II Quant - 21/02/2018 • Quantitative Aptitude • Q84

If A and B are the roots of the equation Ax2 – A2x + AB = 0, then what is the value of A and B respectively?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 1, 0

A and B are the roots of the equation

Ax2 – A2x + AB = 0

So,

A + B = -(-A)/A = 1 ....(1)

AB = AB/A = B ....(2)

From (1) and (2):

A = 1

B = 0