World most difficult question (ias).

Note:- this question is only solved by ias topper Gaurav Agarwal.

Question:-

Ans :- for the description I wanted to tell you that the addition of three odds number never equal to a even number ,so  to solve this question we have to use symbols

. _+_+_ =30

.11+13+3! =30

{3!= 6}

n! = n *(n-1) *(n-2)*....*1

3! = 3*2

3!=6

Thanks . Please follow me and  share this