BrainLab wrote:
Is rw = 0?
(1) −6 < r < 5
(2) 6 < w < 10
Source: [
OG 2016]
Is rw=0---> will be true if 1 of the r=0 or w=0 or r=w=0 is true.
Per statement 1, -6<r<5, you will get a "yes" with r=0 for all values of 'w' but a "no" with r=-4 and w=10. Thus not sufficient.
Per statement 2, 6<w<10, you will get a "yes" with r=0 for all values of 'w' but a "no" with r=-4 and w=8. Thus not sufficient.
Combining, -6<r<5 and 6<w<10, you get a "yes" if r=0 and w=7 but get a "no" for r=-4 and w=8. Thus still the statements are not sufficient.
E is thus the correct answer.