Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Abhishek singh
I have derived each step.This will surely help you.
option D is correct
you can simply see from diagram for first two parts
you can ask doubts if any.