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)
Ruby negi
see,, ur doubt,average value of 1/V.... same u can do for average value of V..
for doubt, u can ask..
see this...
u can ask for any doubt...