How was the ISI paper today?

[varnika1880]

I attempted 2 full 2 fifty fifty in peb ...

[Dr. Strange]

Cool. Lets hope for best.

[Akash]

I  have done 28  in PEA and just 2 correct for PEB. Any idea when the result comes out? igidr came out pretty early this year. Maybe the isi people do it soon too

[Dr. Strange]

Seeing earlier posts I think results will be announced between 4 and 11 th of june. Considering how ambiguous this year's questions were I think if you have done two fully correct and with step marking in rest  you have pretty good chance of making it.

[Tania123]

What was the answer for the f(x)f'(x)<0 question?
Can anyone explain the solution as well?

[Ankita]

I think it was, mod of f(x) is decreasing.

[Dr. Strange]

differentiation of  |f(x)|= f(x)*f'(x)/|f(x)| which is always -ve if f(x)*f'(x)<0

Hence |f(x)| is decreasing