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)
Anju bala
New profit sharing ratio is 4:4:4:3. As asked in question, profit sharing ratio of old partners is same. if there is any doubt or query please ask.