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)
Shanu arora
here is the solution , isko ase smjho jaise ki teen blanks hai aur teeno blanks mai 0-9 number fill ho skte hai, to har ek mai 10 number fill ho skte hai, aur teeno independent hai, to total tareeke hogye 10*10*10: 1000 . Aur inme se 1hi shi hoga ,to 1000-1: 999 wrong passwords hogye.