What is the least whole number that should be added to 784839 if it is to be divisible by 10?	Choose the correct choice from the following options
A) 3
B) 2
C) 1
D) 5
E) 6
A number is divisible by 10 if the last digit is 0.   Here, 784839=9, (last digit is not 0.   1 must be added to 784839 to make it divisible by 10   1
<result>C</result>
What is the least whole number that should be added to 784839 if it is to be divisible by 10?