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)
Satpal singh
see the attachment it is the complete calculation i think your question is wrong you can verify this question through following links https://youtu.be/f6qKLkGEwUQ https://youtu.be/jZv4bEWpNLg