Aptitude Hack#13(8-3-19)

Question:
Largest five digit number exactly divisible by 39 is:
 A) 99979
B) 99956
C) 99989
D) 99996

Answer: D)99996

Explanation:
Largest 5 digit number is 99999.
Modulus Division  99999 by 39=3 Reminder
Therefore 99999-3 = 99996 is the largest Five Digit Number divisible number by 39.
Hence The Correct Option D
Second Method: (Only Work For Some Case Based On the Option)
It Every Clear From Above Option That The Answer is D) 99996
Because Other Options Are Not Divisible By 3.
As We Know 39 is Divisible By 3
So the Option Should Also Be Divisible By 3.
A) 99979=9+9+9+7+9=43 not Divisible By 3
B) 99956=9+9+9+5+6=38 not Divisible By 3
C)99989=9+9+9+8+9=44 not Divisible By 3
D)99996=9+9+9+9+6=42 is Divisible By 3