A number is divisible by 11 if the difference of the sum of its digits at odd places and sum of its digits at even places is either 0 or a number divisible by ___.

10

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9

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Solution

The correct option is B $11$
A number is divisible by $11$ if the difference of the sum of its digits at odd places and sum of its digits at even places is either $0$ or a number divisible by $11$ .
For example: $12221$
Sum of the odd places $= 1 + 2 + 1 = 4$
Sum of the even places $= 2 + 2 = 4$
Difference $= 4 - 4 = 0$
So, $12221$ is divisible by $11$ .

Hence, option B is correct.

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0

or a number divisible by

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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 are either 0 or divisible by ___.

Question 148

Fill in the blank to make the statement true.

If the difference between the sum of digits at odd places (from the right) and the sum of digits at even places (from the right) of a number is either 0 or divisible by ___, then the number is divisible by 11.

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0

, then the number is divisible by _____ .

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if the difference of sums of even and odd places is

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or a multiple of

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