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)
Rohit kumar gupta
just add the mass energy of total eletron energy too and the devide by 20 then u will get BE per nucleon see the attachment