What is the least value of x. So that 30x55 is divisible by 3?
Choices:
A) 4
B) 5
C) 1
D) 2
E) 7
The sum of the digits of the number is divisible by 3, then the number is divisible by3.   3 + 0+ x + 5 + 5 = 13+ x   Least value of x may be 2   Therefore  13+ 2= 
<gadget id="calculator"> 13+ 2</gadget>
<output>15</output>
15 is divisible by 3.   2
<result>D</result>
What is the least value of x. So that 30x55 is divisible by 3?