RRB Group D 2-Nov-2014 Shift 1 Solved Paper

24 = 3 × 8, where 3 and 8 coprime.
Clearly, 35718 is not divisible by 8,
as 718 is not divisible by 8.
Similarly, 63810 is not divisible by 8 and 537804 is not divisible by 8.
Consider option (4):
Sum of digits = (3 + 1 + 2 + 5 + 7 +3 + 6) = 27,
which is divisible by 3.
Also, 736 is divisible by 8.
Thus, 3125736 is divisible by 24