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)
Rucha rajesh shingvekar
There is no short trick to solving such an example but if there is such a question in the exam, it should be Solve at end.