Which is the following is divisible by 11.  Choose the correct choice from the following choices:
A) 4305 B) 4825 C) 4805 D) 4905 E) 4906
Explanation:   Sum of first 'n' natural numbers = n(n + 1)/2   Sum of first 9 natural numbers = 9(9 + 1)//2 = 9 x 5 = 45   Sum of first 99 natural numbers = 99(99 + 1)//2 = 99 x 50 = 4950   4950 - 45= 
<gadget id="calculator">4950 - 45</gadget>
<output>4_905</output>
4905   Answer: Option 4905
<result>D</result>
Which is the following is divisible by 11.