If the number 872,152,24x is divisible by 11, what must be the value of x? Select:
A) 1
B) 2
C) 3
D) 4
E) 5
Multiplication rule of 11: (Sum of digits at odd places - Sum of digits at even places) should be divisible by 11   Given number: 872,152,24x   Sum of digits at odd places = 8 + 2 + 5 + 2 + x = 17 + x (i)   Sum of digits at even places = 7 + 1 + 2 + 4= 
<gadget id="calculator">7 + 1 + 2 + 4</gadget>
<output>14</output>
14 (ii)   (i) - (ii)= 17 + x - 14 = x - 3   Hence x should be = 3 to make this a multiple of 11 (0) Option 3
<result>C</result>
If the number 872,152,24x is divisible by 11, what must be the value of x?