Fill in the blanks to make the statement true.A number is divisible b

1.	Fill in the blanks to make the statement true.A number is divisible by 11 if the differences between the sum of digits at its odd places and that of digits at the even places is either 0 or divisible by ______.
Answer» 11 Explanation: Assume that the four digit number abcd Here, the digits at odd places are a and c and in even places are b and d Hence, (a+c) – (b+d) = 0 It follows that, (a+c) – (b+d) is divisible by 11, when (a+c) – (b+d) is not equal to 0.

Fill in the blanks to make the statement true.A number is divisible by 11 if the differences between the sum of digits at its odd places and that of digits at the even places is either 0 or divisible by ______.

Answer»

Explanation:

Assume that the four digit number abcd

Here, the digits at odd places are a and c and in even places are b and d

Hence, (a+c) – (b+d) = 0

It follows that, (a+c) – (b+d) is divisible by 11, when (a+c) – (b+d) is not equal to 0.