In order that the number 1y3y6 be divisible by 11, the digit y should be
A
1
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B
2
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C
5
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D
6
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Solution
The correct option is C 5 ⇒ A number is divisible by 11 if the difference of the sum of its digits in odd places and the sum of its digits in even places is either 0 or a multiple of 11.