Greetings to you,

JEE allows the numerical answers to be either 4 or 4.00. Both are considered to correct and you will be awarded marks if you have given the answer in any of the above form provided it is correct. JEE Advanced 2018 candidates came out with the same issue where JEE provided the same solution to the issue as mentioned above. JEE has released the final answer keys with all the discrepancies removed. Kindly go through it for any doubts still unsolved. Good Luck.