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प्रश्न
Test the divisibility of following numbers by 11
9020814
उत्तर
We know that, a number is divisible by 11, if the difference of sum of digits at even and odd places is either zero or divisible by 11.
We have, 9020814
Sum of digits at even places = 1 + 0 + 0 = 1
Sum of digits at odd places from the right = 4 + 8 + 2 + 9 = 23
So, difference = 23 – 1 = 22 .....(Divisible by 11)
Hence, it is divisible by 11.
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